Jefferson thought Varina was getting deaf so the Dr. told him to come in the door and call her, and see how long it took for her to answer.
So he did. At the front door he said "I'm home, whats for supper?"
He heard nothing, so he went into the parlor - said same thing, but still no response.
Then he went into the back hall and same thing: "I'm home, whats for supper?" He heard nothing once again.
Finally he went into the kitchen and repeated it for the 4th time. And Varina said "FOR THE FOURTH TIME, SPAGHETTI !!!
Ha Ha, gotcha didn't I?