A fireman comes home from work one day and tells his wife, "We have a wonderful system at the fire station: One ring of the bell, we put on our jackets. Two rings, we slide down the pole. Three rings, we're on the trucks. From now on, we're going to run this house the same way. When I say 'Bell one,' I want you to strip naked. When I say 'Bell two,' I want you to jump into bed. When I say 'Bell three,' we're going to make passionate love."
The next night, the fireman comes home from work and yells, "Bell one!" His wife takes off her clothes. "Bell two!" His wife jumps into bed. "Bell three!" and they begin to make love.
After two minutes, his wife yells, "Bell four!"
"What's Bell four?" the husband asks.
"More hose," she replies, "you're nowhere near the fire!"