The stupidest knife related almost injury was while watching "V for Vendatta".
I have that swiss bayonet that looks like the knives in the movie and I tried the fancy finger flip he did. It came down like a heat seeking missle headed straight for my crotch and I had to do a total dive out of the way to keep from neutering myself.

"if you want to be a hero you have to learn to drive stick"! Sara Conner