A man was sitting in a bar and noticed a
group of people using sign language. He
also noticed that the bartender was using
sign language to speak to them.

When the bartender returned to him, the
man asked how he had learned to use sign
language. The bartender explained that
these were regular customers and had
taught him to speak in sign. The man
thought that was great.

A few minutes later the man noticed that
the people in the group were waving their
hands around very wildly. The bartender
looked over and signed "Now cut that out!
I warned you!" and threw the group out of
the bar.

The man asked why he had done that and
the bartender said, "If I told them once
I told them 100 times - NO SINGING IN
THE BAR!"