Ian,
What about the two guys on a golf holiday in Africa? They were playing on a course where wild animals were prevalent, so a guard with a shotgun accompanied them . On the third green, a lion jumped out and was shot . On the sixth, a cheetah jumped out and was duly shot. On the 11th a tiger jumped out, looked at the first player putting and eat him. The other guy says to the guard: " why did you leave that happen"? The guard says:" Sorry, but he did not have a shot on this hole!