You are worthless and contribute nothing to this family!
How it Affects the Child's Mood
I will never be good enough for this world, no one cares about me :(
What this will do
According to FBI agent Robert Ressler, who interviewed countless murderers, he claimed that over 75% of them suffered from sort of abuse in their childhood. 
A household with a good environment
We got tickets to go to the next football game in town! 
Since the child is still developing, this abuse can in turn lead to cognitive issues in the child, according to the authors of criminal analysis of a serial killer (Google Scholar). 
How it Affects the Child's Mood
My parents are the greatest parents I could ask for, they make so many sacrifices for me and help assure that I am prepared for the future!
The child slowly loses the ability to learn empathy and sympathy, he becomes more unaware of the feelings of others and develops the habit of not feeling for others and using his internalized anger in negative ways. The child could be classified as a sociopath. According to PsychologyToday, sociopathy is a result of one's environment. 
What this will do
Good boy !
While not every victim of abuse in their childhood will become a criminal, there should be no question into how important it is to treat a child with immense care and supervision, rewarding them and punishing them in a safe and educational way. 
As the child in this household grows up, he will be developing safe and rewarding habits. He will care for himself and others, instead of internalizing all his emotions, he will communicate to his parents as he feels safe and appreciated.
The child who is in the loving environment learns good habits with animals and shows happiness in playing with him and not harming the animal in any way.