It was just after I had gotten off work--finding out my grandfather was in the hospital, my mom waited til she knew I was off work before calling me as she didn't want me to worry. He died several days later.
It wasn't that it happened to me but that I was the lead person. A coworker of mine at a retail job I worked at in college was diabetic type 1. He had been feeling off the whole day and he let me know that if he called me over the walkie talkie to come to him. He trusted only me of who was working I guess. Well 20mins after telling me that he calls me. I find him in the back room. He had collapsed and was going into insulin shock. Called 911 was on the phone with them the whole time calming speaking to my coworker while trying to alert the front of the store without leaving my coworkers that the EMTs were going to be coming in from the front of the building, etc. Coworker went to the hospital, everything was fine after he got medical attention. Store manager came and said I have no idea how you were so calm. I responded that I didn't have any other option but to be calm especially given all the people out in the store, keeping my coworker calm, directing the 911 responder regarding what was going on, where our store was, the easiest entrance for a stretcher, etc.