Rob and Rosemary were well into their nineties and starting to suffer from memory loss.
They decided to see their GP who confirmed they were physically well and suggested they write things down, so they did not forget them.
That evening Rob asked Shrewsbury if she wanted anything from the kitchen. She said, "Yes please, could I have some vanilla ice cream and you had better write it down". He said he could remember and didn't need to write it down.
She then said, "Some raspberries would be nice, and you had better write it down". Rob said he could remember and didn't need to write it down.
Rosemary then said, "Could I have some chocolate sauce on it please, and you better write it down". Rob was getting very frustrated and said, "I can remember it - vanilla ice cream with raspberries and chocolate sauce" and went into the kitchen.
He came back half an hour later with a slice of ham and two fried eggs. Rosemary said, "You silly b*gg*r, you forgot the toast!"