I will admit that I wanted to shout for standing on the top of a scaffold in front of a good new wall always goes to my head. It is a sensation something between that of an angel let out of his cage into a new sky and a drunkard turned loose in a royal cellar. And after all, what nobler elevation could you find in this world than the scaffold of a wall painter? No admiral on the bridge of a new battleship designed by the old navy, could feel more pleased with himself than Galley, on two planks, forty feet above dirt level, with his palette table beside him, his brush in his hand, and the draft blowing up his trousers; cleared for action.

The Horse's Mouth