What am i gonna do with this guy?

in the course of one car ride...

Cash: "I eat the boogies."
Me: "You shouldn't do that. What do they taste like?"
Cash: "Hot dogs."

Cash: "Look at that school bus. (it was actually an RV with a small truck towed behind). That school bus has a truck. That's so funny."

Cash: "Look at that car. (a jeep with a bicycle rack and a bicycle on the back). That car has a bike on it. That's so funny."