Three soldiers walk into a bathroom... Three soldiers walk into a bathroom: an Ultramarine, a Blood Angel, and an Imperial Guardsman. They each head to a urinal and begin to do their business. The Ultramarine finishes first, and walks over to wash his hands. Washing his hands, he uses plenty of soap and water, spends a long time scrubbing his hands, then grabs towel after towel, wastefully tossing them after a single use, ensuring his hands are dry. ""In the Ultramarines, they teach us to be thorough."" he says, turning to leave the bathroom. The Blood Angel finishes next, and walks over to wash his hands. He uses only one pump of soap, turning off the water while he soaps his hands, and pulls out a single towel, which he uses over every bit of his hands, until every last corner of the towel has soaked up all the moisture it can. ""In the Blood Angels, they teach us to be efficient."" he says, turning to leave the bathroom. The Guardsman is the last to finish, and he walks past the sink to leave. On his way out, he says, ""In the 41st Imperial Guard, they teach us not to piss on our hands.""