Underground mine rescue, anyone who's worked on an oil rig when it's gone pear shaped, fishermen caught in a once in a lifetime storm, anyone who's worked in a petrochemical plant when it's gone pear shaped, anyone who's responded to a train smash, or earth quake, flash flooding, a farmer caught in an auger and been scalped or had an arm ripped off, I know a bloke who was bowled over by a bull and played with for 2 hours before anyone found him, he's still alive, I'd say he endured a pretty stressful time, I was at a game of local football when the 2 umpires had just finished a day of work officiating at the grand final, one of them turned on the water for the shower, water entering the improvised hot water system flashed to steam, the water vessel exploded, killed two kids, injured my sister and 3 close friends were put into the ICU for several weeks, the blast destroyed two buildings, the umpire in the shower was sliced up by the tiles, he survived but it was pretty messy. My dad has been trapped in a bush fire, I worked with a bloke who cradled his mate as he died after watching him get crushed by a large mine truck tyre, another woman killed her husband as she drove off in her mine truck, not realising he was still working on it, another bloke watched his mate sitting in a vehicle get run over by a bull dozer, a mate of mine knows of suburban train drivers who have run over multiple people who have selfishly used his train as an exit strategy. The list is endless.