A police officer pulled over two blonds riding on a motorcycle, and said to the rider, 'Ma'am, you're driving much too slowly, could you please drive faster?" And the rider says, 'Oh, I saw the sign with the "21" and assumed the speed limit was 21 km/h". The officer explains: 'No ma'am, the speed limit is 80km/h. The road you are on is highway 21. Then the police officer looks at the passenger and notices she is white as a ghost and shaking like a leaf. "Excuse me he says to the rider, but why is your passenger white as a ghost and shaking like a leaf? "Oh, that's probably because we just got off Highway 215."