Okay.
I was the youngest person in my class, because I was classified as "gifted," and was also born shortly before the New Year. In Florida, the cutoff date to start Kindergarten was that you had to be 5 by December 31. So, I made it by a couple weeks.
I moved to New Jersey with my Mom. I got bullied, because I was the new kid, and I wore glasses, and I was the smallest and the weakest.
After about a year and a half of this, I stood up to a kid. He "called me out." We went and fought after school. I kicked his ass. After I punched him in the eye, and drew blood, he folded like an accordion.
Teachers in sixth grade congratulated me.
The same thing happened about three years later. When I was 14, I hit my first growth spurt. The guy that had had been bullying me tried it one too many times right in the middle of Gym, and I slapped him in the face as hard as I could. Then I called him a bitch, and told him to do something about it if he didn't like it. He was still bigger than me, but I was taller than him at that point. He backed down.
I haven't been bullied since.