If my son disobeys again, I will have to grind him up
That is horrible. Why do you have to do this?
His behavior has gotten to a point where I won't tolerate it anymore. I'm sick of it and he needs to be taken care of perminently.
No matter how bad his behavior has gotten it's not an excuse for you to break the law and kill him. Killing people is wrong in the first place and breaking the law will end up with you being the one who gets punished.
You just don't understand my parenting styles.
You should punish your child for certain, but murdering him will make it so that you're in prison. Do you not understand that this is not a valid parenting style, and instead just murder? You shouldn't do it.