An old woman, Grandma Edna, went to the doctor for her annual checkup.
The doctor, trying to make polite conversation, asked, “Mrs. Edna, how are you feeling these days?”
“Oh, I’m feeling just fine, doctor,” she said. “But I do have one little problem… I seem to be passing gas quite a bit. It’s nothing too bad — they’re silent, and they don’t smell at all. In fact, I’ve probably passed gas about 10 times just sitting here talking to you… but you’d never know because they’re completely harmless.”
The doctor smiled, nodded, and scribbled something on his notepad.