A duck walks into a bar, sits on the bar stool, and says, "Got any hats?" The bartender gives him a funny look, and says, "No, this is a bar. We don't sell any hats." The duck shrugs, hops off the bar stool, and walks out of the bar.
The next day, the duck walks in, sits on the bar stool, and says, "Got any hats?" The bartender says, "No, this is a bar. All we sell is beer. We don't have any hats." The duck shrugs, hops off the bar stool, and walks out of the bar.
The next day, the duck walks in, sits on the bar stool, and says, "Got any hats?" By this time, the bartender is starting to get a little pissed. "No, I don't have any hats. I will never have any hats. Don't come back." The duck shrugs, hops off the bar stool, and walks out of the bar.
The next day, the duck walks in, sits on the bar stool, and says, "Got any hats?" This time, the bartender is furious. "Listen duck, this is a bar. All we serve is beer. I don't sell clothing. I will never sell clothing. If you ask for hats one more time, I'm going to NAIL you beak to this counter!" The duck's eyes get really big, and he guns out of the bar.
The next day, the duck walks in, sits on the bar stool, and says, "Got any nails?" The bartender is livid. "NO, I don't have any nails, I don't have any hats! I don't sell clothing, I don't sell hardware! All I sell is beer!"
"In that case, got any hats?"
Bonus: A lawyer walks into a bar with a duck on his shoulder. He puts the duck down on the counter. The bartender shows up. "I'm sorry, but we don't serve his kind here." The lawyer says, "Come on, its only a duck." The bartender says, "Shut up, I was talking to the duck."