How should I handle dishonesty from a coworker?

How should I handle dishonesty from a coworker?

It's important to address dishonesty directly but tactfully. Have you considered talking to your coworker privately?

I haven't yet. I'm worried it might escalate things.

That's a valid concern. You could approach the conversation with a focus on understanding their perspective first.

What if they deny it or become defensive?

If they deny it, remain calm and present any evidence you have. If they become defensive, try to steer the conversation back to finding a solution.

Should I involve a manager if it doesn't get resolved?

Yes, if the issue persists and affects your work environment, involving a manager may be necessary to address the situation.