I'm going to ruin a kid's childhood
What are you going to do to the kid?
I'm going to cut his eyes when the kid cries for his mom.
That is a very harmful thing to do to a child. If you don't treat children better, you may end up going to jail for child abuse.
Just watch and see what happens.
You should never hurt a child. Professional counseling can help you to stop thinking about doing things like this that are physically abusive to others.