I remember in Junior High I was getting bullied a stupid farmboy who was smaller than me, and I wanted to whip his ass so bad, but I didn't want to get in trouble and I was a real wimp back then and I didn't want to get my ass kicked, either. Some crazy **** had gone down where the overall grades at the school were slipping so bad that they gave us all these heavy duty paper notebooks to write our homework assignments in. They were like a step below cardboard. I recall getting a nasty paper cut from the edge of the damn cheap things on my thumb. This inspired me. The next time the livestock diddler fucked with me in art class I took the booklet and held it like a straight razor and slashed it across his wrist and he bled all over the frickin place. He had it coming, too, 'cause he knew he couldn't kick my ass, but he saw me getting bullied by everybody else who could, and took advantage. After I cut him, he was broken. Two or three years later he still had a scar on his wrist and got his ass kicked by a junior high schooler when we were in HS.
Everytime I read a Ninja book that mentions them making a knife with a passable point by folding newspaper tight enough I laugh. Screw the triangular fold to make a shitty point, just fold it sideways over and over to give it strength and wield that fucker like a razor.