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