I was working on my computer on a hot afternoon. I kept hearing a faint voice outside, but was focused on my work and thought it was the neighbors talking. Then I heard that voice calling my landlord's name and was reassured it was nothing. A few minutes later, I heard the voice say, "Help..."
I jumped up; went outside and looked over the fence. There was the elderly neighbor lying in the sun next to the pool. I called to him that I was calling 911; I ran inside, and dialed 911 (I can't be in extreme heat, myself). My wife came home at that time, and climbed the fence to help the guy. She moved him into the shade, and at his instructions, she went inside and got his diabetes meds.
The paramedics showed up, I showed them the gate. They had to break a lock to get in the gate. At that point, a guy on the other side of his house, came over and told us to go home, that he would take care of it (I guess the were friends).
Our landlord said she'd heard him calling his name, but ignored him because she said he was always complaining about her landscaping.
In the days /weeks that followed, we never got as much as a wave from the old manlet alone a thank you.
Don't know why I shared that, but it does illustrate the dangers of falling. He's lucky he didn't fall into his pool.