Because they were trained.
Ohhh, I'm just driving around town, painting "free candy" on the side of creepy looking vans.
Motorist: Because it was revoked months ago.
In the cow-boose.
The teacher tells you to spit you gum out. The train says, "Chew, chew, chew!"
They train them
A LOCOmotive.
Lots of training.