This is for anyone who's ever dreamed of catching a bicycle thief in action.  Security video in Ireland shows a guy parking his bike, but not locking it, and then leaving.  Not even 20 seconds later someone comes by and tries to steal it. 

 ortunately, the cyclist returns in time to TACKLE the guy . . . and then they square off and he gets the best of him.  The thief leaves and the cyclist goes back to his bike.