A policeman had a perfect spot to watch for speeders, but wasn't 
getting  many. Then he discovered the problem-a 10 year old boy was standing up the road with a hand painted sign which read "RADAR TRAP AHEAD". The officer then found a young accomplice down the road with a sign reading  "TIPS" and a bucket full of change. (And we used to just sell lemonade.) 

  Moral: God gives us adequate warning, we won't even leave a tip.
 

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