Nuts attend a Ballgame

It seems that the recreational director of a mental hospital wanted to take
a well behaved group of inmates to a baseball game.  The General Manager of
the club was a little leery of this.  However the Recreational Director
asked, "If I prove to you how well behaved they are, will you let them in?"
It was agreed.

All the inmates were currently sitting down.  When the director said, 
"Stand up, nuts" everyone stood up.  He then said, "Sit down, nuts" and
everyone sat down.  For final proof, the director said "Look behind you 
nuts" and everyone turned around.

Pleased with that, the General Manager let them in.  About the 3rd inning or
so, he heard a tremendous commotion, people running helter skelter.  He
asked what happened.

A person said, "Someone called out 'Peanuts'!"