Mrs. Smith goes to the doctor's office to collect her husband's test
results. The lab tech says to him, "I'm sorry, ma'am, but there has been a bit
of a mix-up and we have a problem.
When we sent the samples from your husband to the lab, the samples from
another Mr. Smith were sent as well and we are now uncertain which one
is your husband's results. Frankly, it is either bad or terrible!"
"What do you mean?"
"Well, one Mr. Smith has tested positive for Alzheimer's and the other
for AIDS. We can't tell which is your husband."
"That's terrible! Can we do the test over?"
"Normally, yes. But you have an HMO, and they won't pay for these
expensive tests more than once."
"Well, what am I supposed to do now?"
"The HMO recommends that you drop your husband off in the middle of
town. If he finds his way home, don't sleep with him."