Pager
A mother took her five-year-old son with her to the bank on a busy lunchtime. They got behind a very fat woman wearing a business suit complete with pager.
As they waited patiently, the little boy said loudly, "Gee she's fat!"
The mother bent down and whispered in the little boy's ear to be quiet.
A couple of minutes passed by and the little boy spread his hands as far as they would go and announced; "I'll bet her butt is this wide!"
The fat woman turns around and glares at the little boy.
The mother gave him a good telling off, and told him to be quiet.
After a brief lull, the large woman reached the front of the line.
Just then her pager begin to emit a beep, beep, beep.
The little boy yells out, "Run, she's backing up!!"