28 October 2026 · 13 min read

What a toxic work environment does to a team, and what a manager can do before it sets

Nobody announces a toxic work environment. It builds out of acts too small to put in a report, repeated by people who mostly think they are being fair.

That second part is why it spreads.

The Tuesday review

Hannah manages a team of eight in a company of ninety. In the Tuesday design review, Rory, the quickest person on the team, tells Ife "we've been over this" in front of everyone, for the second week running. Ife says "fine" and does not speak again until the meeting ends. Nobody laughs, and nobody objects.

In the thread afterwards, Ife's replies get shorter and start copying Hannah in. A fortnight later Tomás, who joined in the summer, begins his questions with "this is probably obvious, but". The arguments that used to run through lunch have moved into private messages. Rory has not raised his voice at anyone. If Hannah had to write down what is wrong - a toxic culture, bullying in the workplace, something else - she could not find the sentence.

On Thursday she answers one of Rory's late-night messages a notch sharper than it deserved, and watches herself do it.

How common is a toxic workplace?

She waits because she cannot say what she is looking at, and the surveys suggest plenty of people meet it. In iHire's 2026 Toxic Workplace Trends Report, 68.9% of US workers had worked for an employer they consider toxic, and 47.6% had quit a job because of one (iHire, via PR Newswire, 25 June 2026). Of the workers who had met a toxic workplace, 79.1% blamed unethical, unaccountable or unsupportive leadership.

Businessolver, with Edelman Data & Intelligence, found that a third of chief executives (33%) describe their own workplace as toxic, and 40% of employees say the same (Businessolver, 23 June 2026). Both surveys are American, and both record what people say about a workplace rather than measuring it.

People who had met a toxic workplace mostly blamed the people running it, which puts the manager inside the loop.

How does rudeness at work turn into bullying?

Rudeness spirals

Incivility is the research word for the low-grade version: rudeness with no name yet, the eye-roll and the interruption. Lynne Andersson and Christine Pearson described how it can escalate into more intense aggression, each side returning the last slight a notch harder than it arrived (Andersson and Pearson, Academy of Management Review, 1999). Each turn can feel like evening the score, which is how decent people end up inside one. Their paper also notes that either party can withdraw.

Onlookers pay too

Christine Porath and Amir Erez found that people who merely watched someone being treated rudely did worse afterwards on routine and creative tasks (Porath and Erez, 2009). The person on the receiving end is not the only one whose work gets worse.

Silence reads as permission

Bibb Latané and John Darley's bystander research found that people who see something wrong look to one another to judge whether it matters, and each takes the others' stillness as a sign that it does not (Latané and Darley, 1968). In Hannah's review, the quiet after "we've been over this" counted as a vote.

British survey data has the same quiet in it. A quarter of UK employees (25%) have experienced conflict at work, and most of them (51%) just let it go (CIPD, Good Work Index 2026, July 2026). Conflict is a wider word than rudeness, and letting it go can be the right call on the day. When everybody makes that call about the same person, the team has decided something without meeting.

One person, a whole group

One more figure fits. In Will Felps's experiment, groups with one planted "bad apple" performed 30 to 40% worse than groups without one (This American Life, episode 370, 2008). That is the radio programme's telling of the experiment, not a figure read off a paper, so hold it loosely. The direction matches the three findings above.

Put those together and the uncomfortable part comes out. Nobody has to set out to bully anybody for this to run. Each turn is small and each silence is polite, and by the time someone reaches for the word, the habit has been going for weeks on people who would be horrified to hear it.

Signs of a toxic work environment before anyone calls it bullying

People search for examples, so here are some. These are the acts from Hannah's review and the weeks after it, and none of them would make a report:

• "We've been over this," said in front of the room, for the second week running.
• "Fine," which ends a conversation without ending the disagreement.
• A decision taken in a private thread and announced as settled.
• A joke with a target, and the laugh that follows it.
• A question that starts "this is probably obvious, but", because the last obvious question was remembered.
• The invitation that quietly stops arriving.

None of them is on a list of banned behaviour, and none needs to be for the cost to arrive: in Porath and Erez's study, people who only watched rudeness did worse afterwards.

WorkNest's survey of 1,017 HR professionals and business leaders also asked which forms of toxic behaviour respondents had seen. Persistent negativity or disruptive behaviour was the most frequently identified, by 59% of respondents; 35% cited employees undermining managers or colleagues, and 30% passive-aggressive behaviour. Bullying or intimidation, the form with a name, was identified by 13% (WorkNest, via HRreview, 21 August 2026). Those add up to more than 100, so respondents named more than one form. Sita Anand of WorkNest says the quieter forms can be damaging to a team and are often harder for managers to identify, evidence and address confidently.

That is the sense in which rudeness is a daily habit and not a policy gap. A policy can say what is not allowed. It cannot say what to do at 10:40 on a Tuesday when somebody says "we've been over this" for the second time, and that moment is where the spiral takes its next turn or does not. A company can have the policy and still have Hannah's review.

Is it bullying or just tough management?

Hannah's next mistake would be to call everything hostile. A lead who holds a deadline, turns down a request or says in a one-to-one that a piece of work fell short is doing the job, however much it stings. Stretch the word to cover that and it stops meaning anything, and the people actually being targeted lose the only word they had.

What moves a hard message over the line is rarely how strong it is. It is the audience, the tone, whether the aim is the work or the person, and how often it comes back. "This needs redoing", said once in private, is management. Said to the whole review, in a sigh, to the same person for the third week running, it is something else, without one strong word in it.

Two questions sort most cases: was it about the work, and was it done the way you would want it done to you? Rory's line might pass the first. It fails the second in front of the room, and he would tell you he was only being efficient.

What a toxic team costs, and why the numbers can look fine

Start with Tomás, because the newest person often pays first. Nobody has told him to keep quiet. He joined in the summer, watched what "we've been over this" did to Ife, and drew the sensible conclusion that obvious questions are remembered here. He is not being bullied and would not say he was. He has learned the local rule, and the next person to join will learn it from him, because week three is when a new joiner works out what normal is, and what nobody challenges is the syllabus.

Now the finding nobody puts on a workshop slide. In the same Businessolver survey, executives in toxic cultures were about twice as likely to report strong financial growth (70% against 36%) (Businessolver, 23 June 2026). That is executives describing their own firms, in one American survey, and it cannot say which causes which. It does explain why this is so hard to see from above. A quarter's numbers can be good while a room goes quiet. Rory is the quickest person on the team, and Hannah's own manager may well be delighted with him.

Why toxic behaviour comes back after you tackle it

Two answers come first, and both are reasonable. The quiet word with the person everyone is thinking of. Or the reset: a workshop, a values refresh, a survey.

Both are a single dose, and the behaviour is daily.

WorkNest's survey asked what happened after respondents acted. Just 6% of organisations said behaviour improved permanently following intervention (WorkNest, via HRreview, 21 August 2026). And 45% experienced an initial improvement before the problematic behaviour returned. The page does not say what those percentages are shares of, so read them as what respondents reported, not as a measured rate of relapse.

The survey does not say what those organisations did, so it cannot say why. The reading here, and it is a reading, is one of scale: one conversation, one policy or one afternoon meets a spiral that gets a fresh chance every working day. What the numbers leave open is what lasts. The sensible bet is something the same size as the problem: small, specific and repeated.

How to deal with incivility in the workplace, starting tomorrow

None of this needs a budget. Three things you can do this week.

Be the first voice

The next time somebody is talked over or waved off in a meeting, say one even sentence: "Let her finish." Or ask a question that hands the floor back. Say what happened, not what kind of person did it. Latané and Darley's finding is the reason: everyone is reading everyone else's stillness, and one voice changes what the stillness means. You are the person the room looks to, to see whether it matters.

Find the person it landed on, the same day

Two sentences: what you saw, and whether they want anything done. "This morning you were cut off twice, mid-sentence. Do you want anything done about it?" Let their answer set what happens next. If what they tell you is bigger than a bad habit, it is not yours to settle over coffee: take it to whoever your company has named for concerns.

Repair your own first

Look back over the last two weeks for a slight that was yours: a sharp reply, a joke with a target, a message sent at eleven at night. Name it to the person within the day: "I answered you sharply in the thread on Thursday. That was rude, and I'm sorry." No "if", no "but", nothing asked back. A slight from the person with the most standing lands harder, so a repair from you tells the room what is done here.

What managers ask about toxic teams

What do I do if the toxic person is my best performer?

Start with the act, because good results do not change what the act costs the people who watched it. Say what happened, when and what it did: "Ife was cut off twice this morning, and she stopped talking." A behaviour can change by tomorrow, and a verdict on a quick colleague only gets defended. Then look at the team's work as well as theirs.

Can one person make a whole team toxic?

One person can start it, but a team has to carry it. Felps's experiment points to how far one person can pull a group down, and Andersson and Pearson's spiral shows how it sticks, with each returned slight and each silence adding a turn. So one departure can leave the habit in place, and the team still needs a different one.

Should I raise it with one person or the whole team?

Both, in that order and for different reasons. Raise the act with the person first, in private, because in front of the room it becomes a trial. Then, without naming anyone, ask the team what it wants to be true in its meetings. The first deals with Tuesday. The second gives everybody something to hold each other to next Tuesday.

How MeaningFuel helps before a team turns toxic

Being the first voice, finding the person and repairing your own all depend on you remembering, week after week, with the diary full. That is the part a habit can carry.

An ordinary week of Respect, Courage and Emotional Intelligence

A company chooses the values and skills it wants to work on, and each working day everyone gets one short insight on one of them. Incivility is a problem, so it cannot be chosen for the daily culture. Respect, Courage and Emotional Intelligence can. A reader might meet a line on who gets heard on Monday and one on saying the awkward thing on Wednesday, on mornings when nothing has gone wrong. The idea is that being the first voice has crossed people's minds before the day it is needed.

Civility and Respect, for the team it has reached

Civility and Respect is the module about stopping incivility and bullying. Whoever runs the account or the team books it, it invites the people on that team, and those who join get one short lesson by email each working day: a scene, a question with four answers, and a small action for the day. Over the module the team learns to name the spiral, to tell hard from hostile, to describe the act rather than diagnose the person, to step in as a witness, and to check in afterwards and repair their own slips.

One lesson gives a witness four moves to choose from, so nobody has to be brave, only to pick one. Another takes the same line online, where fewer people see each act. Another starts from "sorry if that came across badly", and explains why that adds a turn to the spiral.

In its last lesson the team chooses two civility norms of its own, specific enough to say tonight whether you kept them today - "nobody is cut off mid-sentence" is the kind of thing meant - practises them daily, and chooses again every quarter. The idea borrows from CREW (Civility, Respect and Engagement in the Workplace), a programme from the US veterans' health service that has been tested in controlled studies and rests on a team choosing its own civility norms.

What Hannah would see on Insights

Insights shows how much of a team takes part and how the insights land, pooled, with nobody named. If a team goes quiet, the fall shows against that team. It would never tell Hannah that Rory is the reason, that Ife has stopped speaking, or that anything happened on Tuesday at all, and a lead sees that the team is doing a module, never what anybody answers or writes. It is no substitute for sitting in the review and hearing it.

What it does not do

It is not an investigation, and it promises no result. It will not tell you who was in the right. It puts the repetition on a working-day schedule, so it does not depend on a manager's memory.

The next turn

The slight Hannah saw on Tuesday has had one turn so far. Andersson and Pearson's paper says either side can decline to take the next.

• Toxic Workplace
• Incivility
• Bullying
• Team Culture
• Managers