I've never been in that situation, actually.

I'm sure I wouldn't really like it, but I wouldn't mind it too much... just as long as they didn't claim they made it.
Actually nvm, I have been in that situation before with my Foxes avi.

But then the two people changed it shortly after.
I don't mind if people take my avis after I'm done using them, though. I change mine 1-2 times a week, so I always have plenty.