I was standing at the bar at an International Airport when this small Chinese guy walks in, stands next to me, and starts drinking a beer.

I asked him, "Do you know any of those martial arts things like Kung-Fu, Karate or Ju-Jitsu?"

He says "No, why do you ask me that? Is it
because I am Chinese?"

"No", I said, "It's because you're drinking my beer, you little prick."