I used to do historical reenactment so would regularly fight with swords, spears, axes, knives etc. Great fun but the injuries start to really hurt over time. A broken knuckle and getting stabbed in the face with a semi-sharp sword that resulted in a hospital visit were my worst!
The broken knuckle was an unfortunate accident during a public show. The angle of the sword thrust happened to go up into my glove and popped a knuckle. The sword to the face was during training by someone who should have known better than to sneak a semi-sharp in. Still, scars to your face add character!