A personal story....
When I was about 11, I was on the local football team organized by the community. Those of you who have met me know that I am by no means pysically intimidating (the Pipe-cleaner man is what I call myself now) but there was an assistant coach who's son was about the same size as me. He was the 2nd string QB, and boy did he suck! I had a stronger arm and more QB sense, but never even got any reps in practice.
Anyways, this guy knows I want his job, so on one play I got in the backfield from LB position and pounded him. He got all pissed and told his dad that I grabbed his facemask, which I didn't. When I got to the sidelines after the play, expecting to be congratulated for the sack, this guy, a GROWN man, grabbed my facemask and nearly pulled my head off. He was yelling and screaming, "SEE HOW YOU LIKE IT, I'LL TEACH YOU NOT TO GRAB THE FACEMASK YOU LITTLE PUNK". Again, I was all of 11 years old and about 85 pounds.
I was so upset that I told my father about it. I remember he got really quiet and made sure that he had a few words with this guy after the next practice. My father is a big guy, 6'1" and about 290 pounds (what the hell happened to me then). He never told me what he said to the guy, but that coach never spoke another single word to me after that.
I only played one season of football...