I'd take the (insert tool of death here) away from anda and hold anda until it ended; coaxing anda and trying to calm anda down. And if that doesn't work; try and knock some sense into anda (without hitting anda physically)
If anda were hanging yourself; I'd ask anda if anda had any spare rope atau cloth atau whatever you'd use.
If anda were taking some pills; I'd ask for whatever's left.
If anda were cutting your wrists; I'd ask if I could use it after you.
If anda jumped off a cliff; I'd run over yelling at anda to stop, then when I catch up to anda before its to late I'll suggest that we jump off together. :) It'll add to the adrenaline rush before our untimely yet at the same time timely deaths. ^_^
If anda were to alih in front of a moving car; I'd stand there right behind anda (stronger impact sejak being moved sejak two exceedingly, extremely fast and furious massive (NO offense, not callin' anda fat atau anything) objects...
If anda were to drink posion; Ask atau just take whatever's left (I mean, you'd be dead anywyas...it wouldn't really bother anda if I took the remainders of whatever anda used when you're dead, wouldn't it? =/)
Scream, 'STOP!' No ONE has the right to do suicide. Trust me, I've tried it plenty of times... not fun, at all. It's a serious matter and I wish people in places such as the media would understand just how tortured it can make people. Just NEVER poke fun of something like that with me, because it's not funny in the least!