I could say the "no one suicidal is in their right mind and they'll thank you for saving them later" thing but I wouldn't really care. but I'm trying to be nice now so i might charm them down, if it's a chick who's at least 7/10 then maybe take her out to dinner.
So... you'll save them based on looks and not the fact that they're about to commit suicide?
And if the chick is really 7/10, the suicide factor pretty much brought her down from 7 to 1