David Sedaris said this quote

Low ceiling, stone walls, a dirt floor stamped with paw prints. I never go in without announcing myself. 'Hyaa!' I yell. 'Hyaa. Hyaa!' It's the sound my father makes when entering his toolshed, the cry of cowboys as they round up dogies, and it suggests a certain degree of authority. Snakes, bats, weasels --it's time to head up and move on out.