Women, when would a male staring ever be considered harment to you in school or the workplace?

Anything, technically, can be considered harment now days if you work it right. But staring.. seriously.. staring is NOT harment. Everyone would constantly be in trouble for harment if it was. Just get over it, if all he's doing is staring. But if you feel uncomfortable with what he's saying (and can't think of anything clever to say to put him in his place) then yes.. the harment route would be your best bet to making it stop.