Bobby: The baby routine doesn't work. It's all talk. When the diaper explodes, we're like, "finally!" Then the doctor comes out and his bag explodes. What the heck does that mean? There's a logic to an exploding diaper gag. Kid cut a fart, fine. Why would the bag explode?
Chet: We've been doing the baby routine for twenty years.
Bobby: Why does that not surprise me? You need to get out of your ivory tower and see what's happening on the street. Give the baby a giant bottle. He can hit you with it, he can squirt you with it. Now I'm laughing!