Have you heard of monkey paws and their ability to grant wishes?
Only problem is, as with most wishing mechanisms, everything gets turned sideways and you'll regret not heeding that old adage "Be careful what you wish for". Why can't monkey paws, leprechauns and djinn just let us be rich and successful rather than ply us with their this trickery!?
Now, if you knew this monkey paw could grant wishes BUT you were also aware that it was a tricky bugger... how would you phrase your wishes so that you didn't get scammed by the sneak?