I have on two occasions. Ok, it may be reaching but you decide: Incident one: Several years back, early morning at the office I walk past this guy on my way to get breakfast. I can see he is kinda of zoned out trying to breathe harder. This older dude is a hardworking fellow but he's pretty quiet and don't really interact much with others unless absolutely necessary. So nobody really notices him or his slight difficulty in breathing. On my way back, I can see he still in the same position staring at the window so I stop and ask if he's ok. Others started to take notice as well and came over to check on him. Within seconds, we're scrambling for the internal security's extension and paramedics were there in less than 10 mins. He was having a stroke and went into heart bypass surgery by noon. Immediately after his recovery, he came by to thank me and say he would have been a goner if there had been any further delay to summoning for help. Incident two: This past summer we visited Joshua Tree NP when we decided to hike up the rocky Ryan Mtn. About an hour up, my teenage kids, who as runners had naturally sprinted ahead, came upon an older guy with a girl. Apparently, the older guy tripped and almost fell down the hill but the girl, who was solo, happened to see him and came to his aid. It is clear that the guy's knees and legs are compromised and needs to be accompanied down the mountain. My older son and his girlfriend volunteered to bring him down but the magnanimous me says I'll do it. So I did. We had a decent conversation with what seems to be a relatively quiet 70+ guy who has had knee surgeries and had misjudgedhis ability to continue his love of solo hikes which he has done for years. The trip down took about 2 hours, each slow, rocky step down the stone mountain in 100+ degree with no shade whatsoever. Finally, with what truly seems like an eternity, we reached the bottom and I took him to his car. He continued to thank me profusely, offered me every snack he has in the car and then slowly drove off. I waited under one of the big park boulders for another hour or so. I was dying of heat and had finished that one bottle of water I had with me. There is no cell signal so I could not tell when my kids and my wife were or whether they had started their descent. They go down just as one of the sudden desert rainstorms started and man, did it poured. There was so much water and wind, visibility was like 5 feet and there were sheets of water sliding across the road. With the heat and the sudden rain, had I not helped the guy, he would not have made it down and perhaps another day. When can I expect my wings?