Originally Posted by Wharbone
Although kicking his ass would be the most satisfying, don't. You will get in legal trouble.
Report his ass to the police.
Edit: Just read you can't call the police because your gf won't let you. You could just report him for drug possesion.
True. But i dont think he is going to go to the cops after getting an ass kicking. Then he is pretty much fucking himself over.