I am not sure you can call what such people have as "normal disorder" at least to my perspective. I call it "poor upbringing" and "societal norms changing for the worse". Or bullying, though I'm not sure bullying applied to your story. But many see that behavior as the norm, but we can fight it. The more poor behavior is permitted and encouraged the more society rots. I would have done the same thing you did, but after only the second bumping.