
More seriously though, the thing to remember is that he's a natural born actor. If you can't take the drama, you can find ways to turn those times you're forced to interact with him into a comedy. As an example, you could try keeping a banana in your pocket, and when he moves towards you, draw your banana and inform him in no uncertain terms that if he doesn't back off, you're not afraid to use it. Peal the banana slowly, and as you eat the inside, hold the peel like you're ready to throw it at him.
Needless to say, this is just an example, but the object is to confuse and embarrass him. Not to feed into his drama. The more silly, loud, and outrageous you can go, the more uncomfortable he'll feel. I assume this would be a public place? Exactly. If you do that though, make sure to have someone nearby in case you push it too far and he decides to get physical. If you're not practiced at this kind of stuff, it can be real hard to tell how hard you can push. ... On the other hand, him trying to grab you would be a perfect opportunity to scream rape at the top of your lungs. ... Hmm..
If you don't do it, still think of some things like that you'd like to pull before you see him again. If you remember that stuff while you see him it's going to be a lot harder for him to get you to take him seriously, and he'll lose a lot of his punch. Bonus points if you spontaneously giggle while he's in mid tirade. That would drive him crazy.
