When I was little, I had really bad asthma. One night, after my parents put me to bed (I was 3), my dad felt like he needed to check on me - when he did, I was having a severe asthma attack and I needed to go to the emergency room. The doctor said that if my dad never came to check on me, I would have died.
Another time, I was driving home with my mom from a long road trip (she was driving and we were on the freeway) - it was getting late and she was tired, so she drove 5mph below the speed limit to be safe. All of a sudden we see this black SUV come barreling down the side of the hill (we think they fell asleep at the wheel and drove off the road and up onto the hill we were driving past, woke up and was trying to get back on the freeway - I don't know, it was ****ing weird) infront of us like a deer jumping out onto the road or something. If my mom hadn't slowed down it would have hit the passenger side where I was sitting.