A firefighter is working outside the station when he notices a little girl in a little red wagon with small ladders on the sides, a garden hose coiled in the middle, and wearing a firefighter's helmet. The wagon is being pulled by her dog and her cat.
The firefighter takes a closer look. "That sure is a nice fire-truck," the fire fighter says with high regard.
"Thanks!" says girl says.
The firefighter notices the girl has tied the wagon to her dog's collar and to the cat's tail. "Little lady," 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."