If you have a laser on your pistol, this is NOT the way to test it.
Queen's Guard Slips on Invisible Banana Peel
The Queen's Guard at Buckingham Palace was left red-faced as he slipped on a manhole cover during the famous Changing of the Guard. He lost his footing and slid sideways, knocked his bearskin on the side of the box and dropped his rifle. The soldier quickly scrambled to his feet as his colleagues marched past as if nothing had happened.