*Annoyingly Pleasant Female Dub-Over*: Before you say "No, I want to end this life", think first "Who will miss you?" Only you can change the present! Go, and succeed!
This is for people fearing suicide. I forgot to tell in the first post. If anyone needs someone to talk to, don't be shy.
/End Translation
Now for the serious: Suicide is a very serious matter, and the OP is right in suggesting that those considering suicide should think first about the people around them. However, this advice could actually push some people to suicide considering that some people do not have anyone to think of.
It is excellent always to offer an ear to chew on when others are feeling down and sad, but when it comes to suicide the best thing you can do beyond being there for them is to always have the number of a suicide hotline on the ready should your upset friend truly need help that you cannot give them.
ONLY U CNA CHAGE THEE PRESNT GO ADN SUCEEED!!!!!!!!