Operation Effects

A man who had just undergone an 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 and had to knock him out cold."