Hehe this took me back...
I have a small amount of training, just enough to keep me safe...
I had a similar occurrence with some kid with a knife who left me 2 nice scars. I know 3 things for sure;
1. he was in the hospital longer than me...
2. he will talk and breath funny until a major operation...
3. he will never have kids of his own.
Do never mess with a size 12 steel toe boot.
...and Minty, I too boxed in the Navy, although it was not by choice...
Slug; I had a room mate that was into the Sword fighting. He was extremely proficient at the Rapier and Dagger style of fighting. He taught me for 2 years how to use a Rapier and Dagger and trained me in using a Halberd (which I still have) to defend against and attack a swordsman. In 2 1/2 years I was never able to touch him and was never able to defend. He was too good.