A farang restaurant owner in Chiang mai was getting his place refurbished/rewired etc.He got a farang mate in, who was an Electrical Engineer to have a word with the Thai Sparky to make sure everything was going to be spot on.He told the sparky that he must earth the place properly.
Well the sparky did a great job, even put in a dirty great earthing rod, the problem was, is that he forgot to wire it in to the three point sockets.....