First of all, I only have to prove I was afraid for my life.
If I were a cowboy, I would still use a gun. For a very good reason. You are, at best, in your early 20s. You have, according to your claims, been training for years. I am a 63 year old with osteoarthritus in both knees. And you think I should take a beating because of YOUR sense of the nobility of battle? lol Not a chance, junior.
When (If?) you ever visit the US, bear in mind that plenty of us are armed. You attack someone and you will find out.