Some guy bought a new fridge for his house. To get rid of his old fridge, he put it in his front yard and hung a sign on it saying “Free to good home, You want it — you take it.”
For three days the fridge sat there without even one person looking twice at it. He eventually decided that people were too un-trusting of this deal – looks to good to be true – so he changed the sign to read “Fridge for sale $50.”