@Elhao blame his environment in the past life...
he didn't do anything = get beaten up
try to do self-defense = get beaten up
his father is one of the most scumbag human ever exist...
and everyone around him thinking afraid of him, because he's a "scary"... and he endure that until he become 42 year old
he got PTSD because of that, he thinking everything he do would cause trouble on people around him....