Work

A colleague's behaviour has crossed a line

A comment that wasn't a joke, a pattern of put-downs, something that looks dishonest or unsafe. You looked around the room, nobody reacted, and you've started wondering whether it was as bad as you thought. It was.

What they need from you, and why

Start with the silence in the room, because it's probably what made you doubt yourself. The Group Dynamics module describes the bystander effect that John Darley and Bibb Latané found: the more people present, the less likely any one of them is to step in, because the obligation feels smaller when it's split eight ways. Solomon Asch's line experiments showed how hard it is to stand alone against a unanimous room even when the room is obviously wrong. Nobody reacting is not evidence that nothing happened.

What the situation needs from you is a specific, dated account and the proper channel, not a showdown. The Difficult Workplace Conversations module is unusually direct here: harassment, discrimination, bullying and safety complaints usually have to go through a formal process under your organisation's policy, and often under law as well, so don't try to settle them informally between the people involved. The legal requirements differ between the countries this app serves, which is exactly why it says to bring in HR or the complaints channel early. Its PREPARE framework tells you what to collect: what happened, when, where, who was affected and why it matters. The Building Workplace Relationships module adds the protective habit of following up important conversations in writing.

Speaking up is also how a team stays one where honesty is possible. Amy Edmondson's 1999 study of 51 work teams linked psychological safety to teams that raised problems and performed better, and the Group Dynamics module lists what kills that safety: people punished for raising things, questions treated as incompetence, disagreement met with retribution. The Leadership module's advice to anyone receiving a report is to protect the messenger first: "Thank you for bringing this to my attention."

Understand it properly

First

Write down what happened while it's fresh: date, time, what was said or done, and who was there. Then read your organisation's policy for the proper channel before you decide who to talk to.

You could say

When you made that remark about Priya's accent, the room went quiet. I'd like it to stop.
To the person, soon after a comment. Specific behaviour and its impact, not a label; it's hard to argue with and easy to act on.
I'm not comfortable with this, and I'm not going to be part of it.
To the person, when you're being asked to go along with something. A plain refusal, with no debate attached; the Building Workplace Relationships module keeps these lines short for a reason.
I need to raise something, and I think it needs to go through the formal process rather than a quiet word.
To your manager or HR. Harassment, discrimination, bullying and safety complaints usually have to go through a formal process under policy, and often under law.
On the 12th, in the team meeting, I heard [what was said]. It's happened three times this month. Here's what I've written down.
Dates, frequency and a written record turn "he's awful" into something an organisation can act on.
I want to understand what happens next, and what protection there is if this comes back on me.
The module tells organisations to make sure the less powerful person feels safe and to watch for retaliation; asking makes that expectation explicit.
Thank you for telling me. This is exactly the kind of thing I need to know about, and I'll take it through the proper channel.
If you're the one someone brings it to. Messenger protection first, then process; how you respond to the first report decides whether anyone makes a second.

If it goes badly

Three ways this can turn. Read the one that happens; the others can wait.

You've said something like

When you made that remark about Priya's accent, the room went quiet. I'd like it to stop.

If they laugh it off or say you're overreacting
I'm not asking you to agree it was a big deal. I'm telling you it's not okay with me, and I'd like it to stop.
Minimising is one of the defensive reactions the module tells you to expect; you don't need their agreement to hold your line.
If they want to keep it informal
I understand you'd rather sort it quietly. I'd like it recorded and taken through the policy, and I'd like to know what the next step is.
The nature of these concerns requires formal review, in the module's words; a written record also protects you if it goes further.
If they are your manager
I need to raise a concern about my manager, and I need to raise it somewhere they aren't the one deciding what happens.
Said to HR or to your manager's manager. Power imbalance is exactly the situation the module says needs the formal channel, with the less powerful person made safe and retaliation watched for.

Send them to yourself, or to someone helping you.

Try not to say

Talking yourself out of it because nobody else reacted
That's the bystander effect at work: everyone glances around, sees no reaction, and assumes it wasn't that bad or someone better placed will handle it. They won't.
Trying to mediate it yourself between the people involved
The module is explicit that harassment, discrimination, bullying and safety complaints are not for informal mediation; bring in HR or the proper complaints channel early.
Venting about it to other colleagues instead of reporting it
It becomes gossip, which the module asks you to steer clear of, and it does nothing to make the behaviour stop.
"Everyone knows what he's like."
Behaviour continues precisely because everyone knows and nobody raises it professionally; known is not the same as dealt with.
Leading with a label ("she's a bully") rather than what happened
A label is easy to dispute; a dated account of specific behaviour isn't.

Afterwards

Keep a note of every conversation about it, and follow each one up with a short written summary of what was said and agreed. If anything changes for the worse afterwards, a cooler manager, a dropped project, a shift in how you're treated, write that down too and raise it through the same channel, because the module tells organisations to watch for retaliation and you can hold them to it. Keep the details confidential rather than discussing them around the office. It takes a toll; use your employee assistance programme if there is one, or talk to someone outside work. If you're the manager who received the report, do not investigate it informally yourself; take it to the channel the policy names and tell the person what will happen next.

Understand it properly

The words above come from these. A section is about ten minutes; the whole module is there when you have longer.

Where this comes from

Deeper Dialogues, Difficult Workplace Conversations: escalation triggers, harassment and discrimination going through a formal process under policy and often law, legal requirements differing between countries, power imbalance and retaliation, the PREPARE framework's evidence gathering and response planning (minimisation), toxic behaviour continuing because no one confronts it professionally
Deeper Dialogues, Building Workplace Relationships: refusing toxic politics ("I'm not comfortable..."), avoiding gossip, documenting important interactions and following up in writing, the behaviour-impact formula, psychological safety (Edmondson, 1999)
Deeper Dialogues, Group Conversation Dynamics: the bystander effect (Darley and Latané), conformity (Asch), what kills and builds psychological safety
Deeper Dialogues, Leadership & Influence: messenger protection ("Thank you for bringing this to my attention")

We gather and pass on what researchers and support organisations have found. This isn't a replacement for a doctor, counsellor or support service.

What they need from you, and why

You could say

If it goes badly

Share these words

Try not to say

Afterwards

Understand it properly