i know what to do: if he approaches you again and asks you for a number, give him a fakie. give him like the number of the local superfresh or something. and if he does visit you at work, then politely inform him that you have work to do and can't really socialize at the moment. after that, you can ask your manager for new hours or something, or just tell him that you got new hours.

as for the guys in class, they're everywhere, and yeah they're assholes, but there's not much you can do about it. just take commfort in the knowledge that they're probably the ones getting Ds in really generic courses who will barely make it out with a degree beause of all that partying they do, and will end up as sorry-ass pencil-pushers in dead-end jobs, having married one of those "monsters" they were talking about coz their condom broke or something. you can't waste your energy on people like that, that just knocks you down to their level. cheer up, it's almost summertime :)