A FIREMAN came home from work one day and told his wife, 'You know, we have a wonderful system at the fire station: BELL 1 rings and we all put on our jackets, BELL 2 rings and we all slide down the pole, BELL 3 rings and we're on the fire truck ready to go.    'From now on when I say BELL 1 I want you to strip naked. When I say BELL 2 I want you to jump in bed. And when I say BELL 3 We are going to make love all night. ' The next night he came home from work and yelled ' BELL 1!' The wife promptly took all her clothes off.    When he yelled 'BELL 2!', the wife jumped into bed. When he yelled 'BELL 3!', they began making love. After a few minutes the wife yelled 'BELL 4!' 'What the hell is BELL 4?' asked the husband?    'ROLL OUT MORE HOSE,' she replied   ' YOU'RE NOWHERE NEAR THE FIRE.'