Bob was worried about his wifes hearing so he visited the doctor.
The doctor gave him step-by-step instructions on how to determain how serious the problem was.
Later, when he got home he saw his wife in front of the oven. He stood in the doorway and said “Honey what are we having for dinner tonight?”
No answer.
He then moved three steps closer and said it again just like the doctor told him to, and still no answer.
He moved three more steps and now he was right behind her. He shouted “HONEY WHAT ARE WE HAVING FOR DINNER TONIGHT?”
His wife says, “For the third time, meatloaf you deaf bugger!”