Cold Water A young boy was having lunch with his Grandfather when he noticed a few odd things about the dishes. ""Grandpa, why is this glass stained?"", he asked curiously. ""That's as clean as cold water can get it"", the grandfather replied calmly. ""Ok"", said the boy, then noticed his dirty fork. ""Grandpa"", he asked again, ""Why is there food stuck to the fork? ""That's as clean as cold water can get it"", the grandfather replied, same as before. ""Ok"", said the boy before noticing his dirty plate. ""Grandpa, why is there food stuck on the plate""? ""That's as clean as cold water can get it"". said the grandfather, cool as ever. ""Ok"", and they went back to finishing their plates. As soon as they were done, the grandson stood up and said, ""I'll help wash the dishes"". But his grandfather turned down his offer, whistled for the dog and said, ""come here cold water"".