A man who worked for the fire department came home from work and told his wife,
"You know, we have a wonderful system at the fire department. Bell ONE... we
all put our coats on. Bell TWO... we all slide down the pole. Bell THREE... we
are on the truck & andeady to go. From now on, we are going to run this house
the same way. When I say Bell ONE... strip naked. Bell TWO... you jump into
bed. Bell THREE... we screw all night."

The next night he came home from work and yelled... 
Bell ONE! She took off her clothes.
Bell TWO!! She jumped into bed.
Bell THREE!!! They began to screw.
After two minutes, she yelled... BELL FOUR!!!!

He asked, "What's bell Four for?"

"MORE hose," she said. "You ain't NOWHERE near the fire!"