A young doctor had moved to a small community to replace a doctor who was retiring.  The older doctor suggested that the young one accompany him on his rounds, so the community could become used to him.

At the first house a woman complains, "I've been a little sick to my stomach."

The older doctor says, "Well, you've probably been overdoing the fresh fruit.  Why not cut back on the amount you've been eating and see if that does the trick?"

As they left, the younger man said, "You didn't even examine that woman?  How'd you come to the diagnosis so quickly?"

"I didn't have to examine her.  Did you notice that I dropped my stethoscope on the floor in there?  When I bent over to pick it up, I noticed half dozen banana peels and apple cores in the rubbish bin.  That probably was what was making her sick."

The younger doctor said, "Pretty clever!  If you don't mind, I think I'll try that at the next house."

Arriving at the next house, they spent several minutes talking with a younger woman.  She said that she just did not have the energy she once did and said, "I'm feeling terribly run down lately."

"You've probably been doing too much for the Church," the younger doctor told her.  "Perhaps you should cut back a bit and see if that helps."

As they left, the elder doctor said, "I know that woman well.  Your diagnosis is almost certainly correct, for she's very active in the church, but how did you arrive at it?"

"I did what you did at the last house.  I dropped my stethoscope, and when I bent down to retrieve it, I noticed the minister under the bed."