Don’t pay attention when he says something horrible. Just move away to some other place stop being affected by whatever negative he says or does parents never understand but their harsh words and good words shape up our personality in a way so if you are smart enough just move away when he is like that. No need to focus on what’s negative just have good things with him. Although scolding should happen time to time but they should never make it a habit to take their frustration out on kids.