An older couple noticed that they were getting a lot more forgetful, so they decided to go to the doctor. The doctor told them that they should start writing things down to help remember.
Later that evening at home, the wife asked her husband to get her a bowl of ice cream. “You might want to write it down,” she said. The husband said, “No, I can remember that you want ice cream.”
She then told her husband she wanted a bowl of ice cream with whipped cream. “Write it down,” she said, and again he replied, “No, I can remember: you want a bowl of ice cream with whipped cream.”
Then she said she wanted a cherry on top. “Write it down,” she told her husband and again he said, “No, I get it. You want a bowl of ice cream with whipped cream and a cherry on top.”
So he goes to get the ice cream and spends a long time in the kitchen. Thirty minutes pass, and he comes out to his wife and hands her a plate of eggs and bacon. The wife stares at the plate for a moment, then looks at her husband and asks, “Where’s my toast?”