A guy goes to his doctor and says, "Doc, I have a
problem."

"My girlfriend is sleeping over this Friday, my
ex-wife is sleeping over
this Saturday and my wife is coming home Sunday.
I need 3 Viagra pills
to satisfy them all."

The doctor says, "You know 3 Viagra pills 3 nights
in a row is pretty
dangerous for any man. I will give them to you on
the condition that you
return to my office on Monday so that I can check
you out."

The man says, "You have a deal Doc."

Monday morning the man returns with his arm in a
sling.

The doctor asks, "What happened"?

The man answered, "Nobody showed up!"