What is the worst thing a parent can do to their child? Why?

I think that the worst thing a parent could do to their children is to abuse their children, verbally, and physically. If you verbally abuse them, you are discouraging them for example("you will never amount to nothing") most children get down on themselves because their parents do not believe in them. When most children are abused physically for example (hitting your children in public). It could mostly hurt the way they feel about themselves, and it is not normal for any human being to get adjusted to physical abuse. I understand that children are bad and make a lot of mistakes, but they are only children, there are many different ways to discipline your children without hitting them like they are grown.