Yeah there are many bad or abusive childhoods in the world, and yet few people with Dio's personality (or at least I hope so... idk I lost faith in humanity long ago)

I would not want to be inside a train with dio´s dad..

not both, he's just born evil

Evidence?

Diego when:

:)

ok see now Diego definitely wasn't born evil, dude was an innocent wholesome child

So Diego = broken and Dio = Pure evil

Thats what I'm saying

But like... he plotted to kill Johnny's big brother in order to be the best racer

Atleast thats what I think happened.

Anyways he became evil all on his alone.