Been there. I’ve had a few of these “Oh Sh*t” moments.When I was young (~20) …
Now it happens when I go OTB. It’s kinda funny that we can think of so many things while this is happening …favourite colour, personal regrets, happy memories etc .…and then you hit something.
Since I’ve retired I’ve never cut down a live tree. But there are some snags (standing dead tree) around our trails.
It could be that I see things differently and recognize the potential dangers. I know that a snag can fall over at any time and sometimes a slight vibration can cause them to fall. Since I maintain our trails (along with several others)and occasionally resurrect old and abandoned trails, I “sanitize” the area. But I could never make it perfect. There will always be a certain amount of risk. Btw, I never drop a snag without an observer positioned at a safe distance.