Well, speak of the devil. I was both. When one suffers, it is the way of life to spread suffering.
What would you like a person like me to say? That I was wrong? Sure. Do I still want to beat the everloving shit out of the people that perpetuated that against me first? Sure. Would I understand the guy that I was bullying to do it to me? 100%.
I suppose it would make it even. Regardless, the meme is applicable. Teachers knew and ignored the fact that I was bullied, but fuck me if I ever stood up for myself.