A inflatable jockey, a inflatable horse and a inflatable trainer go to the races.
The horse runs last.The inflatable jockey is so disgusted he sticks a pin in the horse ,argues with the inflatable trainer and sticks a pin in him.
The jockey fronts up to the stewards where he sticks a pin in himself.
The stewards said "not only have you let the trainer and horse down but you,ve let yourself down as well"