If Alex can get someone to hit, or arrest him he is happy, because for him, it proves whatever it is he is yelling about. He really should contact JC Webster, learn a few things from him, and then the two could go on the road with some real entertainment.
I think if ol' Alex started yelling at me, I'd just out yell him, and then walk away. At least he's not a door to door religious solicitor. Or a telemarketer. He'd make a great addition to any tech support phone line though. Or maybe the Geek Squad counter.