Had coworkers at any of ur jobs ever complained about you to your supervisor?

My supervisor came to me to tell me that some unnamed co-worker thought I wasn't a team player. I pointed out that part of being a team player is to go directly to a co-worker if you have a problem rather than going anonymously to the supervisor. I actually thought it was really funny...

Both the supervisor, and the co-worker left the company a little while later.

Haha now that's karma.