I've seen this disturbing trend among young people I see in court, a perverse sense of what they call respect. Or rather, it focuses on disrespect. They see an act hy another person as being disrespectful (talk to a woman the first guy wants to be with, make a joke that offendsbthe first, etc.), as a betrayal in the ultimate sense, worthy of violent retaliation. It's an extreme version of "if you are not with me, then you are against me." I've seen brother on brother violence for borrowing clothing. It's mind boggling.