Is this the first time you've mentioned all this on the forum, or did I somehow miss something this unusual?
First time. Hate to explain any of these things, since it would eliminate the international man of mystery mystique. I use a broad, flexible definition for "shoot" and "knife fight."
As a hint... I took multiple 4.5mm steel-tipped rounds to the head. Okay, they were actually BBs, and were actually ricochets, and I still missed the bullseye of that damned 25M airgun target. At 10ft.
And the knife fights... I won them all. Every time I get a new knife, I fight myself (by accident). I am surprised that I still have fingerprints. As a side note, Marttiini makes some very cheap and extremely sharp knives. When not slashing merrily away at my fingers, I used it to shave once. Worked pretty well.
The axe - I was tactical, even as a pre-pubescent kid. I used my 1337 skilz to sneak up behind a guy chopping wood, and my bell was rung. Probably with a splitting maul. Still have a scar on the forehead.
The saw - it was off, I was barefoot, and I was epically stupid. A piece of carpet pad was draped over the saw, and I raked my foot against the bottom of the (pretty sharp) chain while sweeping. That was an odd sensation, so I raked my foot across the area again. Same odd sensation. So I took off the carpet pad. It's a chain saw. I look at my foot. That sensation was temporary numbness, and my foot was now beginning to bleed nicely from 3-4 holes.
Facts sound so much better without details.