When a new bunch of guys would arrive in the South Pacific they were usually all fired up and ready to go fight. He would wait for a bomber to land then line them up just outside of the bomb-bay doors. He would go in and spray the interior of the plane out with a hose while the new group would watch as fingers, brain matter, and other bits of shot-up airmen would flush out. He said it humbled them pretty quick.
-BrewCoug