Back in late 2008, I was just getting into my training for Nami-Ryu, and I had just received the go to use live blades during kata. Well, being the inexperienced guy I was, tried to do a fast noto ( resheathing of the blade after a kata ) and my 28 1/2" Bugei blade sliced almost a half inch into my left hand between my thumb and forefinger. I actually never felt the cut, it wasn't until my hand felt wet did I realize what I had done. Surprisingly, I just cleaned off the blade with my right hand, quickly oiled it to prevent the blood from oxidizing the steel, then wrapped my hand up really nice and tight. No medical attention required because it was such a clean cut, and no arteries or tendons were hit ( thankfully ), but it definitely renewed my respect for anything with an edge.