A nurse in a mental institution walks into Brad's room and finds him acting like he is driving a car.
the nurse asks, "Brad, what are you doing?"
He says, "Driving to Chicago."
She says, "Have a nice trip."
Later that day the nurse walks into Brad's room just as he stops driving his imaginary car. "What are you doing?" She asks once again.
Brad says, " I just go to Chicago."
She says, Terrific."
The nurse goes across the hall to Craig's room. he is sitting up in bed naked, jerking wildly on his prick. She asks, "Craig, what are you doing?"
He says, "I'm fucking Brad's wife while he is in Chicago."