A fireman is at the station house working outside on the fire truck when he notices a little boy next door. The little boy is in a little red wagon with little ladders hung off the side. He is wearing a fireman`s hat and has the wagon tied to a dog.
Fireman: "Hey, little boy. What are you doing?"
Little boy: "I`m pretending to be a fireman and this is my fire truck!"
The fireman walks over to take a closer look.
Fireman: "Little boy, that sure is a nice fire truck!"
Little boy: "Thanks, mister."
The fireman looks a little closer and notices the little boy has tied the dog to the wagon by its testicles.
Fireman: "Little boy, I don`t want to tell you how to run your fire truck, but if you were to tie that rope around the dog`s neck I think you could go faster."
Little boy: "You`re probably right mister, but then I wouldn`t have a siren!"