Extremely brief nap as devised by CatalanSurrealistartistSalvador Dali. He would slide off to sleep in a chair with his arm over the side, holding a spoon over a plate on the floor. The instant he fell asleep, his hand would loosen up and the spoon would fall out and hit the plate with a clatter that woke him up again. He claimed that the brief rest thus afforded him worked wonders.
The boss is coming in the door in twenty seconds. I'd better take a Dali nap.