B.) attack on Pearl Harbor
Positive:
1. The right person pushes you to achieve your goals and better yourself. (Form healthy habits such as drinking/eating better, quit smoking, etc.)
2. Certain people influence how you see yourself, a positive influencer can boost mental health and self esteem.
Negative:
1. The wrong person could emotionally or physically harm you, leaving you drained and abused.
2. The wrong person may cause intentional harm in a way such as Munchausen by Proxy
Self esteem. I don't know of another term for this...
The incident would be characterized as technological hazard. Technological hazard is defined as a hazard where it covers the potential hazard that may be bad for the people and the environment. These include, toxic waste, nuclear radiation, dam failure, transport and technological accidents.