A firefighter is polishing a fire engine outside the station when he notices a little girl next door in a little red wagon with little ladders hung off the side and a garden hose tightly coiled in the middle. The little girl is wearing a firefighter's helmet and has the wagon tied to a dog and a cat. The firefighter walks over for a closer look. "That sure is a nice fire truck," the firefighter says with admiration. "Thanks," the girl replies. The firefighter looks a little closer and notices the girl has tied one wagon leash to the dog's collar and one to the cat's testicles. "Little partner," the firefighter says, "I don't want to tell you how to run your fire truck, but if you were to tie that rope round the cat's collar, I think you could probably go a lot faster. The little girl pauses for a moment to think, looks at the wagon, at the dog and at the cat, the shyly looks up into the fireman's eyes and says, "You're probably right, but then I wouldn't have a flipping siren, would I?!"