I was cursed at a lot and people cursed around me a lot. The word f*ck was not heard as much but hearing you little bastard or that son of a bitch. Cursing could be a said with affection just as much as anger. George Carlin covered the word shit pretty well.
SOB could be said , well I'll be a SOB... That SOB changed when it became , that no good or lying or thieving the list is endless ... Of course if there is physical violence or threatened physical violence then it went to a whole new level. Bastard changes depending on the inflection of the a's .
Knowing they can be a real sob or bastard can be such a source of pride for some and it comes with bragging rights. So does being an asshole.
I think one might be a bit of a narcissist when they hone being a bitch or bastard to such a fine skill it's an enjoyable pastime.
Brat can be a curse word thrown at a child. I have a part named Brat, I guess I was called it so much, I began to think it was my name. It was not said with affection.
I think I was more affected by the hateful ways the adults talked to each other. Words flew like expert dagger throwers. That was the real education.