I was a lineman working during peak heat in the summer. We had a pole change-out with a 3-phase bank. We had the pole framed, and we were spreading energized wire on a double dead-end when the other lineman in the air with me started acting funny and confused.
At one point, he didn't understand what we were doing, so I decided to tighten it up, take a break, and let him cool down. We were in different trucks, and I saw him get out of his and walk around to the other side where I couldn't see him. I waited a few minutes and decided to go check on him, and he was convulsing in the dirt, having a heat stroke.
So I picked him up, put him in the foreman's truck, and told him to call 911 and start driving to the nearest hospital. He ended up making it to the hospital and had a 3-day recovery in the hospital before he was allowed to be discharged. They told me that if it had been another 5–10 minutes, he probably would not have made it.
One of the hardest things in this line of work is having to call a lineman's wife to let her know that her husband has been injured and is in the hospital. Thankfully, I have had to make very few of those calls.
This is also a good reminder to me to keep an eye out for what is going on at my job sites. It may not always only be my crew, but I keep an eye out not only for the job itself getting done, but for each individual's safety.