When responding to a 911 call, how can paramedics tell if the caller is just emotionally disturbed versus likely to turn violent?

What made you go into teaching in Australia?
Why is loving someone hurting me when I kept it in secret from her?
Why do partners who cheat sometimes experience what's called "affair induced narcissism," and what does it look like?
Which professions allow people to have multiple jobs without conflicting schedules?