.... a Police driver came across a motorcyclist, helmeted, gloved and swathed in cold-weather gear, stopped by the side of the road.
"What's the problem?" asked the copper.
"Carburettor's frozen" came the terse answer from under the helmet.
"So pee on it, that'll defrost it" says the Policeman.
"I can't do that" says the biker.
"Ok, I'll do it, you just watch what I do" says the officer, whips out his todger and pees on the engine and, lo and behold, it starts.
A few days later the Chief Constable got a letter from the father of the biker. It started...
"Oh behalf of my daughter who was recently stranded..."
