Modified from another joke:
A Nolthir, a Ylian, and a Stonebreaker walk into a Kada-El\'s tavern together. They each buy an ale. Just as they are about to enjoy their beverages, a fly lands in each of their drinks and gets stuck in the head.
The Nolthir pushes his ale away in disgust.
The Ylian fishes the fly out and continues drinking as if nothing happened.
The Stonebreaker also picks the fly out of his drink, but then holds it out over the beer and yells, ?Spit it out! Spit it out, you bastard!?