An old couple was watching TV one evening, and the husband got
up to go to the kitchen. His wife told him to get her some iced
tea, and knowing that the years had taken their toll on his memory,
she told him to write it down.
"I can remember iced tea," he protested.
"But I want sugar in my tea too," she told him, "so write it
down."
He told her he could remember iced tea with sugar.
"I want a slice of lemon too." she said, "Just write it
down."
He left the room grumbling to himself. A few minutes later he came
back with a plate full of mashed potatoes for her.
"Now look what you've done!" she yelled at him, "You forgot my
gravy!"