Grandpa and Grandma are sitting on a bench in the park they hear the jingle of the ice cream salesman.
Grandma says : “I’d like some vanilla ice cream.”
Grandpa says: “Good idea, I’d also like some chocolate ice cream”.
Grandma stands up and says: “I’ll go get some.”
“You should write it, Grandma, you know your memory is not what it was… you’ll forget !”
“Don’t worry Grandpa, I won’t, it’s easy : vanilla, chocolate. Vanilla, Chocolate…”
And thus Grandma leaves Grandpa while singsonging “Vanilla, Chocolate …”
A while later, Grandma comes back with a couple of hot dogs in her hands.
“Grandma ! what did you take ??? “
“Look Grandpa, I took two ketchup hot-dogs !”
“Grandma… I told you to write it down ! I knew you’d forget the mustard !”