Nothing feels more bitter to man than feeling humiliated. We shouldn't let anyone feel humiliated and heart-broken. Whenever you discover that a certain act will humiliate someone you should be careful from it.
When someone feels humiliated, this means that their self has become insignificant to them and dishonored. Hence, can they then respect and love themselves? Of course not, and that includes what is natural and good in them. Thus, they won't care about themselves in whatever state they get into, even if it's a low state like corruption and addiction to drugs, they can do anything.
The feeling of dignity prevents man from many things. It prevents them from being in a shameful and disgraceful position. What makes us feel shy and ashamed is dignity and self-respect, so when we feel humiliated and degraded over and over again we won't care and feel ashamed anymore. And who doesn't feel ashamed will care no more about themselves and might do anything. That is why the prophet Muhammad said: "Shyness brings nothing but good". And one poet said: " who feels degraded will easily accept humiliation, for a wound never hurts a dead man"
That is why feeling humiliated is the most dangerous thing a child may go through. When a child feels worthless and of no value at all and everyone else is better than him/her, from here begins his/her devastation and moral deviation and might turn into a tyrant and take his revenge from society. The basis of the acts of thieves and criminals is feeling humiliated and heart-broken. And breaking one's heart means breaking one's dignity, as if we say to him/her that we are human beings and you're not.
The child who feels happy after making something and finds people laughing at what s/he did or get beaten for it, this will make him/her hate what s/he did and hate all that is natural and virtuous, and easily turn to the artificial (evil) and seek strength from it.
Humiliating someone and breaking their heart is like breaking the best thing in them, as if you are saying to him/her that you are not accepted and deserve nothing and you are finished. Thus this person will say about him/her self: since the best I have is rejected I will turn to evil and care about nothing.
