Three old sisters, 92, 94,and 96 years old, all lived together.

One day the oldest drew a bath. She put one foot in the water, paused, then called downstairs to her sisters, "Am I getting in the tub or out of the tub?"

The middle sister started up the stairs to help, then paused and called back

downstairs, "Was I going up or coming down?"

The youngest sister, who was sitting at the kitchen table having tea, said,

"I guess I'll have to help. I hope I never get that forgetful!", and knocked on wood. She got up, paused, then called, "I'll come up as soon as I see who's at the door!"