I know that I can "upset" people without really realising it myself.
Although usually I'd say that I "didn't care". Like the situation is more important to me than the individual.
It's like if someone's a fucking drop kick. Why should I give a shit if they want to have a little cry about something? And if I can't get through to them - I may as well ignore them.
And then someone else can "help" them come to terms with .. blah blah blah.
Although I'm not EIE.
I think anyone can act like that though. I read something soemtime time about "in an arguement do you consider the others feelings". And I don't think that everyone "considers other peoples feelings" in the heat of an arguement.
Usually they know what they're trying to do when they try to upset somebody.
Obsequium amicos, veritas odium parit