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What to do if…
a colleague sends you aggressive or intimidating messages outside of working hours

Produced and maintained by PanicStation.org Published: Last reviewed: Editorial policy USA guide

Short answer

Do not keep replying. Save the messages that are readily available and use your employer’s available reporting route at the next safe pause. If you need immediate police, fire, or ambulance assistance, call 911.

Do not do these things

  • Do not argue back or keep replying to set the record straight.
  • Do not delete or edit the messages.
  • Do not meet the colleague alone if you feel intimidated or unsafe.
  • Do not post the exchange publicly or start a group-chat confrontation while you are trying to stabilize the situation.
  • Do not dismiss the messages just because they arrived outside working hours; they may still be relevant to report.

What to do now

  1. Reach a safer pause. If the messages suggest immediate harm or you need urgent help, move to a safer place and call 911.
  2. Save what is readily available. Keep screenshots showing the sender, timestamps, platform, and surrounding context. Do not delay blocking or silencing the contact if you need to do that for safety.
  3. Mute or block the contact as needed. You do not have to remain available for more messages. If you need to keep a work channel open, silence personal channels after saving what you can.
  4. Make a brief initial report. Use an available workplace route, such as a supervisor, HR contact, security contact, another manager, or an ethics line. Say that a colleague is sending aggressive messages outside working hours and attach a few clear examples.
  5. Name any immediate safety concern. If the messages include threats, repeated unwanted contact, or intimidation, say that directly and ask what immediate workplace safety measures are available.
  6. Send one boundary message only if it feels safe and useful. For example: “Please keep communication professional and work-related. I will address work matters during working hours.” Then stop replying.
  7. Contact your union representative if you have one. They may be able to support you with the workplace process.
  8. Note any discrimination-related concern. If the messages appear connected to discrimination, or to retaliation for raising a discrimination concern, include that fact in your report and keep the description specific.

What can wait

  • You do not need to decide tonight whether to resign, transfer, confront the colleague, or make a legal claim.
  • You do not need to create a perfect report before telling your workplace what is happening.
  • You can decide later whether to change personal contact details or block the colleague on every platform.
  • If the messages may involve discrimination, or retaliation for raising a discrimination concern, review the relevant EEOC information soon. The applicable route and time limit can depend on your situation.

Important reassurance

It is understandable to feel rattled by aggressive messages outside working hours. Saving the messages, stepping out of the private exchange, and making a brief report can help create a clear record without forcing you to solve everything tonight.

Scope note

These are immediate first steps only. Later decisions about workplace processes, safety arrangements, union support, or external options may need specialist help.

Important note

This is general information, not legal, medical, therapeutic, financial, or professional advice. If you need immediate police, fire, or ambulance assistance, call 911.

Additional Resources

Closely connected guides that may be useful during the same situation or its immediate aftermath.

About this guide

This guide was produced and is maintained by PanicStation.org using its published editorial process. Official and specialist sources are checked where relevant, and AI-assisted tools may be used for drafting, organisation, and consistency checks. The site operator remains responsible for publication, revision, and removal decisions.

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