Dave: This “accidental” act is a total no-no, so you’ve gotta stop the grabby guy in his tracks. If your personality is strong enough, call him out on his actions right in front of his friends. He’ll be humiliated, and hopefully back off. If that doesn’t halt his heinous move, or if you’re too shy to deal with him one-on-one, talk to a teacher or parent about the situation.

 

Bill: I’ll give you the advice my mom always gave my sister: Your body is yours. And this guy does not have the right to touch it, no matter how harmless he may seem. Whatever you do, do it soon: He’s not going to stop until you let him know that his “clumsiness” is so not cool.