[Z]

I don't think selfish is a very good word to use, because to me 'selfish' implies that you've thought about yourself and how you can do something to benefit yourself without thinking about how it'll impact on other people - killing yourself isn't benefitting yourself but otherwise the act of suicide does fit that description... so if there was a word that meant selfish but not in a beneficial way, then that would be better... I don't think very many people kill themselves just to spite anyone else, it's usually coming from a very dark place where they don't see light at the end of the tunnel or for a cause (e.g. suicide bombers or a mass suicide or whatever)... So yeah, it is more or less a selfish act by definition but I don't think very many people do it in order to be selfish... "I'm going to take my life away from myself just so other people can't have me in theirs" surely isn't a thought process that very many people have.