Sometimes old fencing foil blades break. The person I was practicing with during my college fencing class was using an old blade that should have been retired years before. He also wasn't very good, so when he attempted a lunge, he managed to hit way off target with the blade bent against the normal impact curve, while at the same time falling over. The blade snapped, and the jagged edge of the remaining blade went down the outside of my right calf, leaving a 2 inch scar. So yes, I have a dueling scar. I also had to get a crapload of Tetnus booster shots and a bunch of stitches, which sucked. The guy was very appologetic, and he didn't mean to do it, so I didn't make a big deal out of it. Risks of the hobby and all.