An older couple in their advancing years realized they were getting quite forgetful, so they decided to see the doctor. The doctor told them they should start writing things down so they don't forget. They went home and the old lady asked her husband to get her a bowl of ice cream.
"You might want to write it down," she said.
The husband said, "Oh no, I can remember that you want a bowl of ice cream."
She then told her husband she wanted a bowl of ice cream with whipped cream. "Write it down," she told him.
Again he said, "No, no, I can remember. You want a bowl of ice cream with whipped cream."
Then the wife said she wanted a bowl of ice cream with whipped cream and a cherry on top. "Write it down," she told her husband.
"No, I got it. You want a bowl of ice cream with whipped cream and a cherry on top."
Finally he went to get the ice cream but spent a very long time in the kitchen. When he returned, he handed his wife a plate of eggs and bacon. The old wife stared at the plate for a moment, then looked at her husband and declared, "I told you to write everything down! So where's my toast?"