Where’s The Fire?

A man is walking down the street and sees a little boy riding a toy fire engine that’s being pulled by a Dalmatian. Unfortunately, the rope is tied around the dog’s balls, and as a consequence, the toy truck is going very slowly.

The man says to the boy, "You know, son, that truck would go a lot faster if the rope was tied around your dog’s neck."

"I guess so," says the kid, "but then I wouldn’t have a siren."