Are you trying too hard? Facetiousness is not your strength.
Anyhow, simple advice, in my experience, is the best way to help those that are endlessly searching for a reason not to off themselves.
A friend of mine, an ex-girlfriend actually, attempted suicide twice in a week's time about a month ago. She's a psychology major, works as a Bicardi girl, has tons of friends, but the grind of it all put her out of sorts with her self and normalcy. She began to isolate herself, got anti-social, and lost a lot of the things mentally healthy people take for granted. This girl, like others I've met, needed reassurance, and simple guidance that things had not altered terribly and the world was (and never has been) trying to get her. It was really simple advice for a girl who did and should've known better, but it seems to have worked.
I'm not saying this type of advice works for any case, but a lot of times, those perplexing themselves into suicide, just need to clear their heads and realize things are not nearly as bad as they seem.