To hear or not to hear

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Old Man Jenkins fears his wife isn’t hearing what it used to be and he thinks she might need a hearing aid.
Not quite sure how to approach her, he calls the family doctor to discuss the problem.
The doctor suggests a simple informal test:
“Just stand about 40 feet away from her, and in a normal conversational speaking tone see if she hears you. If not, go to 30 feet, then 20 feet, and so on until you get a response.”
That evening, Mrs. Jenkins is in the kitchen cooking dinner, and Mr. Jenkins is in the den.
He says to himself,
“I’m about 40 feet away, let’s see what happens.”
Then in a normal tone he asks,
"Honey, what’s for dinner?"
No response.
So the husband moves closer to the kitchen, about 30 feet from his wife and repeats,
“Honey, what’s for dinner?”
Still no response.
Next he moves into the dining room where he is about 20 feet from his wife and asks,
“Honey, what’s for dinner?”
Again he gets no response.
So, he walks up to the kitchen door, about 10 feet away.
“Honey, what’s for dinner?”
Again there is no response.
So he walks right up behind her.
“Honey, what’s for dinner?”
To which Mrs. Jenkin spins around and shouts
“For the fifth time, I said CHICKEN!”