Wayne Rooney walks into a shop He sees a shiny silver thermos flask that he has never seen before, so he finds a shop assistant and asks him, ""what is this used for?"" the shop assistant replies, ""it is used to keep hot things hot and cold things cold"". Wayne Rooney buys it and takes it to training the next day. Alex Ferguson sees Rooney carrying his thermos flask and asks, ""what you got there Rooney"". to which Rooney replies, ""Oh this, it's brilliant; it's used to keep hot things hot and …