//lesson on biotechnology
Delaney: I have a joke. Does anyone want to hear a joke?
//several students raise hand
Delaney: So a guy's driving on the road, and then he sees a chicken going past him on the road -- the chicken runs past his car.
Delaney: The chicken outruns his car and goes to a farm with a bunch of chickens.
Delaney: When he gets to the farm, he sees all these chickens zipping around really fast, like the chicken he saw earlier.
Delaney: He asks the farmer "why are these chickens so fast", and the farmer says, "well, we like drumsticks."
Delaney: "I like drumsticks, my wife likes drumsticks, and my son likes drumsticks."
Delaney: "So I bred a chicken with three legs, so we don't have to fight over who gets drumsticks."
Delaney: The guy says, "cool! But what do they taste like?"
Delaney: The farmer says, "I don't know. I've never caught one."
//Some of the class erupts in moderate applause
Delaney: Thank you; thank you. I got more farm jokes. Some of them are even appropriate.