A guy goes to Chicago for a convention. He's heard Chicago is a wild town and tells the taxi driver, "Wait here, I'm gonna check in, then I want you to take me somewhere crazy". After he checks in, the driver brings him to a big house with a red light out front. He tells the madam, "This is my first time in Chicago, I want to try something different". She says she knows what he means and sends him up the stairs to room #3. There's no one in the room, but there's a chicken clucking in the corner. After waiting 10 minutes, he realizes that the chicken is his 'something different', so he gives it a try and it's unbelievable!
The next day, he hardly pays attention to the meetings and seminars he's attending, just thinking about getting back to the red-light house. Finally he cuts out an hour early and heads straight there. The madam tells him to go to room #2. He bounds up the stairs with excitement and enters the room. It's almost completely dark, but after a minute, he can see there are rows of chairs and people sitting facing a huge two-way mirror. He sits down and starts watching the action on the other side of the mirror. There are two guys getting it on with a couple of squirrels. He says to the guy next to him, "This is amazing!". The guy answers without taking his eyes off the action, "You should've been here last night. There was a guy f---ing a chicken"!