I have invented a new device that is set to revolutionise the task of house painting.
Once filled with the desired type of paint and placed in the middle of the room the device is started by the operator who then leaves the room and shuts the door.
The device then begins to spray paint evenly at random in all directions until every surface is covered.
I call it the "Harmisson"
(stolen from the Age Leaping Larry's Letterbox)