Hearing the Truth

An elderly gentleman had serious hearing problems for a number of years.
He finally went to the doctor and the doctor was able to have him fitted
for a hearing aid that allowed the gentleman to hear perfectly again.

The elderly gentleman returned to the doctor a month later for a follow
up appointment.

The doctor said, "Your hearing is perfect. Your family must be really
pleased that you can hear again."

To which the gentleman said, "Oh, I haven't told my family yet. I've
just been sitting around and listening to the things they say when they
think I can't hear them!"