An old man is in the surgery, and he asks the doctor if there was any way he could find out if his wife was hard of hearing.
The doctor replied, "If she won't come in for a hearing test, you could try talking to her when you get home. If you get no response, then move a little closer and repeat what you've said. If she doesn't hear you at first, you can gauge just how deaf she is by how close you get, until she does hear."
Armed with this information, he sets off home. Opening the front door he notices his wife in the kitchen down the passageway, with her back to the door. Closing the door quietly, he says to his wife, "Hi honey, I'm home, what's for dinner?"
He gets no response, so he moves a little closer and says again, "Hi honey, I'm home, what's for dinner?"
Still no response; so he enters the kitchen,and says, "Hi honey, I'm home, what's for dinner?"
Again she doesn't respond, so he walks up to her touches her arm and says, "Hi honey, I'm home, what's for dinner?"
With that she reels around and shouts at him, "Bangers and mash, for the fourth f..king time, you deaf bastard!"