Dear Experts, I think my co-worker is stealing from me! I've been noticing things are disappearing from my desk (ie. food in my drawers, change, etc.) I think it is the guy who sits in the cube next to me. I recently saw him with a pen that was mine. He claims it's his, but I got it as a gift and it's not one you see around every day. What should I do? Confront him? Tell my office manager, or just keep my mouth shut? Here is how our T.A.P. experts answered this question: Q#331 First confront him. Second, get solid proof and go to your boss. Most companies should have zero tolerance for theft. (@gradversity) Our Twitter Advice Project (T.A.P.) is no longer an active campaign. To find an answer to the above question, please use the "Search" box in the right-hand column of this website.