Silent gas emissions

A man walks into a doctors office. He says, "Doctor, I'm suffering from silent
gas emissions. All day at work, I have these silent gas emissions. Last night
during a movie, I had 10 silent gas emissions. This morning in the car on the
way to your office, I had five silent gas emissions. And while waiting in your
waiting room I had three silent gas emissions. Right now, as a matter of fact,
I've just had two more."
The doctor replied, "Well, the first thing we're going to do is check is your
hearing!"