A fire fighter is working on the engine outside <br />the station when he notices little Johnnie next door in a little red wagon with little ladders hung off of the side and a garden hose tightly coiled in <br />the middle. <br /><br />The boy is wearing a fire-fighter's helmet and has the wagon tied to a dog and a cat. The fire fighter walks over to take a closer look. "That sure is a nice fire truck," the fire fighter <br />says, with admiration. <br /><br />"Thanks," says little Johnnie. <br /><br />The fire fighter looks a little closer and notices the boy has tied the wagon to the dog's collar and to the cat's testicles. <br /><br />"Little partner" the fire fighter says, "I don't <br />want to tell you how to run your fire truck, but <br />if you were to tie that rope around the cat's collar ,I think you could go faster." <br /><br />Johnnie says, "You're probably right, but then I <br />wouldn't have a siren."