Some more links:

When Do You Need Inpatient Treatment For Bipolar Disorder? | Mental Health Treatment Circle - HealthyPlace

Treatment-Resistant Depression: When Hospitalization is Needed

See this is where I get flustered. Danger to self and/or danger to others is commonly listed, but how do you know when that is the case? What about people who frequently experience such thoughts, but do not act? Are they still considered a danger to self/others? That seems overboard. Yet, is waiting until you're actually trying to attack yourself or others, pretty stupid? Seems so. So how do you judge the situation?