How do I deal with a toxic coworker?

Concerns & risks

You were trying to just do your work, but a coworker keeps taking credit for your ideas and talking behind your back.

Workplace conflict drains energy.

Causes & evidence

Address behavior calmly; if it involves protected traits, it may be harassment. See workplace harassment.

What to do

1. Stay professional and document incidents.
2. Talk to them directly if safe.
3. Escalate to your manager or HR.

Common mistakes: Common mistakes: gossiping back or reacting angrily in public. Stay professional. Keep records of your work, like emails summarizing ideas. Try a calm, private conversation first. If it continues, talk to your manager focusing on work impact. If it involves harassment based on protected traits, report it through official channels. When you talk to the coworker, describe the specific behavior and its effect, like 'In Tuesday's meeting, my report was presented as yours. Next time I'd like to present my own work.' Copy your manager on project updates so your contributions are visible. Protect your mental health: lean on supportive coworkers and keep interactions short and professional.

Speed Man tip: Focus on behavior and impact, not personality.

Wrap-up: Document. Talk. Escalate.