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People being bullied can end up being bullys he did not say this I am, he now seems to be taking the blame for his actions and rightly so.
People with no character to begin with can start off being bullied an end up doing the same themselves.If you're any kind of a decent human being, you'll know what it feels like and would never hesitate to jump in if you see someone being made to feel as crap as you used to.