Yes, as stated above, this is from wrestling, and the constant grinding of that flesh which produces scar tissue over time. It's why wrestlers and Jiujitsu types wear ear protection. I find after a grappling session, my ears hurt quite a bit.
I also box and I'm a karateka, and my ears don't get hit much - most of the time - not at all.
When I say most of the martial arts community has Cain's back, is that we understand the circumstance and support him. Most likely, he will have to pay for the crime. That being said, Bushido/Budo Code a real thing that many of us live by. I definitely live by it.
For those who have never fought, or been in a fight, or cowered in a confrontation wouldn't understand this. The main reason why most of us even got into martial arts is because we were bullied, harassed, faced violence, been physically hurt, humiliated, or experience physical/sexual malevolence upon us. That's my personal experience. I started learning when I was 6 by my father who was a boxer and Shotokan 2nd degree black belt. Start officially going to class when I was 9, and started fighting competitively when I was 12.
So yeah, if I even discovered somebody hurt my wife or step-son, there is no telling what lengths I would go to to seek justice.
Also, martial artists are the most calm, respectful people in the world. I'm not talking about the fake martial artists, I'm talking about people who train and face overwhelming violent circumstances on a daily basis in a consensual, controlled environment (dojo/gym). When you train that hard, to the limits of your skills and knowledge and win and lose - daily - it humbles you.
So, to see Cain go to this length, it is very surprising. I share his sentiment though - child touchers can burn in hell, for all I care. F 'em; they are the lowest of the low scums of the earth.
