Trashing his tray. (Dear Highlights).

At lunch my friend puts his trash on my tray. I tried asking him not to. What should I do?

Evan H., Michigan

Your friend may think that he's being funny, but of course it isn't funny to you. If he won't change his ways, then perhaps you should sit with others instead. If this doesn't work, you may need to have a talk with the adult who is in charge during your lunch period.