..."- invariably feels that they might have, could have, or should have done something to prevent the suicide."....

like it or not, I probably could have.. instead of "ok", i could have said "no", or asked why, or something... he was always "borrowing" stuff, stupid stuff, screws, lightbulbs, motor oil, fishhooks, beer, smokes, guitar strings, all kinds of dumb things, can't even think of them all, so when he "borrowed" the pack of glasers, it never occured to me to ask why.. i think they cost like $10 or so, no big deal.. no problem right.. but it was a problem.. a big screw up on my part for sure.. real big.. a year later and i am still so ****** at myself.. every time I see them at the store, i debate picking up a pack for myself, then i realise i am trapped, and i get more ****** and upset..