Hail him, and he'll call you ugly. If you mention the word "Ugly" in response, he'll ask if you want to take it outside. Say that you'll take it outside (use his wording), and he'll walk outside of the bar, do some mock punching at you, then collapse. Then he'll get up, say he's thirsty, and go back into the bar :-)
Anyone catch the similarity to "Cliff" from Cheers?

