That guy was obviously wigged. He just happened to have a sword available. If not, he would have used a pitchfork, a cricket bat, a length of pipe or the ever-popular fireplace poker. When's the last time someone used a sword to commit a crime in which psychosis wasn't a factor?

And, Layah, I don't doubt that the fire-eater who told me that story was "embellishing" it a bit. Not only do many Renn Faire folks like to play with knives, they like to fantasize a bit.