A man who had just undergone a very complicated operation kept complaining
about a bump on his head and a terrible headache.
Since his operation had been an intestinal one, there was no earthly reason
why he should be complaining of a headache.
Finally his nurse, fearing that the man might be suffering from some
post-operative shock, spoke to the doctor about it.
The doctor assured the nurse, "Don't worry about a thing. He really does have
a bump on his head. About halfway through the operation we ran out of
anesthetic."