Soon after the drinks have been handed out, the Republican gives him a big smile, waves at him and says in an equally loud voice, "Thank you!"
This infuriates the union rep and so he again orders the bartender to pour drinks for everyone in the bar except the %#^&@ Republican. But again, this doesn't seem to bother the Republican at all. Indeed, he continues to smile and again yells out to the union rep, "Thank you!"
The union rep is really getting angry. So for the third time, he loudly orders drinks for everyone except the %#^&@ Republican. But also, for the third time, it seems to cause no consternation for the Republican sitting with his laptop. In fact, his smile is bigger than ever when he again yells over to the union rep a hearty "Thanks you!"
The union man is really steaming by this time and he turns to the bartender. "What's the deal with that Republican? I've ordered three rounds of drinks for every single bum in here except him and yet all he does is smile and thank me. Is he drunk or just plain stupid?"
"Neither one," replies the bartender. "He owns the place."
(Original joke told by Dan Sorkin and passed along by Lee Rodgers. I'm afraid I've played with it a little.)