A cop on a horse stops a little girl riding on a bike.
"Did father Christmas bring you that bike?" he asks.
"yes," replies the little girl.
"Well tell him to put a reflector light on it for you next year."
He fines her £5.
The little girl looks up at the cop and says:
"Nice horse you've got there, did Father Christmas bring you that?"
The cop smiles and replies:
"He certainly did."
"Well," says the little girl.
"Next year tell him that the prick goes under the horse and not on top of it."