Midcow2 - if you view the "Who's Online" under "Quick Links", and you check when the chicklet was given, you can sometimes deduce who handed it out. If red ones are like green ones, the amount of the deduction will depend on how many chicklets the other person has - that might help narrow it down.
That really only works if you can get it down to one person, though. No reason to get ticked at a bunch of people who might have done it.