The old joke is...
Cop: “Why are you carrying a gun!”
Citizen: “It keeps the elephants away!”
Cop: “There are no elephants around here!”
Citizen: “SEE! It works!”
Pretty much like the guy who claimed unemployment insurance as an out of work logger. The state asks him where he worked. Guy says southern Arizona. State responds with there are no trees in southern Arizona. The guy says ... yep.
I carjacked your joke and sent it on to friends and family. It was funny. Thanks for posting it.