I think the Samaritans take 12 hours for a reason , if you are actually talking about things and having them heard and acknowledged most people are safe, more completed suicides are acts of impulse, heat of the moment type thing ,so in fact they are leveraging time on your side as you await a response, less likely to go postal, more time to process what your contemplating and realize this idea is just bad,more people talk themselves off of the ledge than jump, although suicide is at an alarming rate , it's the people who shut down who are most lethal, they don't talk they just think with deppression deepening and coloring a person's vision attempts are the "natural outcome" so to speak, which is why I don't understand all the help lines that are for suicidal people not talking one on one and engaging people in a true dialog about there feelings .talk to almost anyone who survived an attempt and there regret, is even attempting !