A firefighter is working on the fire engine outside the station when he
notices a little girl in a little red wagon with little ladders hung off the
sides and a garden hose tightly coiled in the middle.   The girl is wearing
a firefighter's helmet.  The wagon is being pulled by her dog and her cat.

The firefighter walks over to take a closer look.  "That sure is a nice fire
truck," the firefighter says with admiration.

"Thanks," the little girl says.  The firefighter looks a little closer and
notices the girl has tied the wagon to the dog's collar and to the cat's
testicles.

"Little Partner," the firefighter says, "I don't want to tell you how to run
your rig, but if you were to tie that rope around the cat's collar, I think
you could go faster."

The little girl replies thoughtfully, "You are probably right, but then I
wouldn't have a siren."