Three sisters aged 82, 84 and 86 live in a house together. One night the 86-year-old draws a bath. She puts her foot in and pauses. She yells down the stairs, was I getting in or out of the bath?.

The 84-year-old yells back, I dont know. Ill come up and see. She starts up the stairs and pauses. Then she yells, was I going up the stairs or down?.

The 82-year-old is sitting at the kitchen table having tea listening to her sisters. She shakes her head and says, I sure hope I never get that forgetful.

She knocks on wood for good measure then yells out, Ill come up and help both of you as soon as I see whos at the door.