A security guard encounters an individual on their patrol route who appears to be experiencing a severe mental health crisis, posing a potential danger to themselves but not directly threatening others. What is the most appropriate action for the security guard to take?

1. Attempt to counsel the individual and provide psychiatric advice.
2. Leave the individual alone if they are not directly threatening others, as security guards have no authority over mental health issues.
3. Contact emergency services (police or ambulance) immediately and observe from a safe distance, providing first aid if safe and necessary.
4. Directly intervene and physically restrain the individual until they calm down.