I just remembered an Onion post from a long ago that speaks to what I'm saying. People can and should do something even if the depressed person says to go away and leave them alone. Nobody wants to be rude or be a bother, but sometimes it's an emergency situation and people should give themselves permission to act.

Parents Of Suicide Victim Saw It Coming A Mile Away

https://www.theonion.com/parents-of-suicide-victim-saw-it-co...