Let's see, I knew four people who committed suicide. When I was a freshman in high school my brother's friend was all high on heroine and tweak and flung himself off the the 14th St. bridge onto the freeway below. A fairly simple death had it not been for the big rig barreling down the 91 that snagged is falling ass mid-fall. That funeral was closed casket. I don't think the kid was being selfish, he was just all screwed up on drugs.
Four months after my brother's friend killed himself the boy's father walked out into the fields (which are now track homes, creepy) and shot himself in the head. He had two sons and a wife but he couldn't cope with the death of his "good son". He was selfish, his poor loving wife was better off with out him but his other son (who knew his father hated him) just became a bigger and bigger fuck up as the years wore on.
About 15 years later, within this same family, after his mother's death from a sudden heart attack the "bad son" got stinking drunk and decided to lay down on some train tracks to end his life, that did the trick. I don't think that was selfish, I just think that was sad.
It was so weird that that entire family unit, a family I'd known since I was 7 years old were completely gone in a matter of 23 years.
And the fourth person was someone I barely knew, a neighbor and friend of Retrotrek's. He was taking Paxil for depression. One night he tried to stab his wife so she left him, when she returned the next day to get their son's clothes she found him swinging from a rope in their garage. I don't think that was selfish considering that taking anti-depressents can cause suicidal feelings but I also don't think smoking all the dope he did and snorting all the cocaine he did helped any.