An Englishman's Castle

A man is working hard in the gold mines, and doesn't hear the ominous
rumble until too late. He comes to and realises he is trapped by the left
leg. Really trapped. He is there a long time, and although they eventually
get him out he has to have the leg amputated. Recovering in hospital, he
sinks into a deep depression. He sees a psychiatrist, and says, "I feel so
terrible. Who would ever want a one-legged gold digger?"

The psychiatrist looks over his half-moon glasses and replies, "Have you
ever thought to ask Paul McCartney?"