Mr Frumble's Hat

Mr Frumble is a grumpy old man. He lives in a big house that he is too lazy to clean.One day a little man in a blue suit wearing a very peculiar hat, knocks on his door and offers to clean his house for no pay.Mister Frumble lets him in and soon the little man sends old Mr Frumble into a spin. He is woken up every morning with very loud banging noises that make Mister Frumble even grumpier.Why is the little man in the blue suit always trying to bang a nail in a wall to hang his hat on?Why was he always waking Mister Frumble up?