When I was working night securiy on campus, I found a lady in a car with the motor running at 4:00 am or so. She didn’t respond, so I called it in and dispatch had a police officer and an ambulance come. After the officer failed to jimmy the locked door, and just before he was going to break the window in, I discovered that the passenger side door was open. When we pulled her from the car, a whole bunch of pills came spilling out. She had been taking them until she passed out.
It was at the loading doors to the bookstore, where her husband was one of the managers. Found out later that he had asked for a divorce, and she had tried to kill herself in the location where he would be the person to find her.
She had left her kids sleeping at home. Sad.
They were able to save her, but you never know how these things turn out.
Another time, I postponed a death for a couple of hours. 
I heard a thump and looked up to see a car had hit a little girl. She was breathing, but deeply unconscious when I checked her out. During the time I was making sure that an ambulance and the police had been called, she had turned blue. I pulled her tounge back from where it was blocking her airway and she pinked up again.
About then her poor mother came. She was understandably shook up, and I tried to help calm her, all while holding the tounge in place.
The ambulance came and took her to the hospital, but the brain damage was too much and she passed away a few hours later.
It was in the middle of a busy intersection in Tokyo, with scores of people around, but I was the only one who came to her aid. Good old boy scount training, I guess.
While the girl wasn’t able to survice, I’d like to think that it meant something to the mother to not to have to see her daughter die on the pavement.