How do I handle this sexual harassment issue?

So there’s a guy at work (I work in a restaurant)... He’s a total creeper… He constantly flirts with me in the creepiest, perv sort of way. One night I was in the back cleaning something and he came up to me, grabbed my arm pretty hard, and said, “You need a man who will show you who’s boss.” A couple of days ago I was sitting on the counter in the kitchen next to the computer and he walks up and leans in to feed some paper off the printer, right next to me. I scoot a little and lean way over to get out of his way, when he leans forward more and rubs his ahem on my leg. He is very aware that I have a boyfriend and am not interested at all. He does this to other girls at work, and telling him to back the fuck off is NOT working.

I can’t tell if he’s just socially inept, or simply a perv. I’ve talked to the managers about it and they’re going to address it with him. But, I’m a little worried about having to work with him going forward. Is he going to retaliate? It’s definitely going to be awkward.

This might help in your psychoanalysis of this creep… He has a weird habit of sort of “stealing” food, drinks, and cigarettes from people. For instance, when we get off work, most of us sit and have a beer and sometimes eat. He’ll just come over and grab your beer and start drinking or grab your food and start eating. He doesn’t ask. If you say something about it, he gets all pissy like you’re doing something wrong or rude. He also conveniently never has cigarettes and basically demands them from you.

What do I do to tolerate this guy?