[Oschisms]

IMHO, you've put up with far too much. Report him to management. If they don't do anything, do some stalking of your own. Maybe he'll stop when you tell him where his mom lives. Even perverts don't want their mom to come to harm.

[weegee]

Even perverts don't want their mom to come to harm.

Or more appropriately, they don't want their mothers to know what they are up to when they are in "public".

[TontoKowalski]

I'm going to ask for a new locker. That guy just gives me the creeps.