[wtfsvi]

I don't think it's necessarily and always wrong to prevent suicide or to prevent people people from cutting themselves, but I think the burden of proof that someone is not acting rationally is on you if you want stop someone. And it applies again every time you want to stop someone new/again. Appealing to statistics and saying most people that try to committ suicide are later thankful of someone who stopped them doesn't cut it. (I don't know to what degree it's true either.)