Sitting on the side of the highway waiting to catch speeding drivers, a
Police Officer sees a car puttering along at 22 KPH. He thinks to himself,
"this driver is just as dangerous as a speeder!"

So he turns on his lights and pulls the driver over.
 

Approaching the car, he notices that there are five old ladies - two in
the front seats and three in the back - wide eyed and white as ghosts.

The driver, obviously confused, says to him "Officer, I don't
understand,  I was doing exactly the speed limit! What seems to be the
problem?"

"Ma'am," the officer replies, "you weren't speeding, but you should know
that driving slower than the speed limit can also be a danger to other
drivers."

"Slower than the speed limit? No sir, I was doing the speed limit
exactly... Twenty-two kilometers an hour!" the old woman says a bit
proudly.

The Police officer, trying to contain a chuckle explains to her that
 22 was the highway number, not the speed limit. A bit embarrassed, the
woman grinned and thanked the officer for pointing out her error.

"But before I let you go, Ma'am, I have to ask... Is everyone in this
car OK? These women seem awfully shaken and they haven't made a peep
this whole time," the officer asks.

"Oh, they'll be all right in a minute officer. We just got off Highway
189."

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