Maybe not the scariest experience, or even on a hunting trip, but is the most bizarre injury I've ever received, happened while fishing with my son in Alaska, along the kanektok river, in the togiak National preserve.
We were walking along the bank of the river, I was 30-40 yards ahead of him and the guide, we were mousing for rainbows in the log jams and deadfalls along river edge.
Walking thru head high grasses and willows, in waders, stumbling over hidden branches and into/thru unseen ditches. Falling and tripping was not uncommon.
Took a slight tumble, knew I was going to the ground, so I held my fly rod high so that it would not get broken. Hidden in the grass, right in front of me, was a chewed off beaver stob, about 4" in diameter.
Took the stob right in the face, the point punctured my cheek and cracked a tooth, knocked me out cold.
I came too a few seconds later with my son and our guide staring down at me, blood covering my face and neck.
Nothing could be done, the first aid kit in the boat was waterlogged, wrapped a t shirt and bandana around neck and face, finished the drift back to camp, fishing all the way back.
Luckily there was a retired doctor in camp who carried sutures and needle. He stitched my face up later that eve while I laid on top of a cooler, used boiled purell to disinfect the wound.
Not life threatening, but pretty helpless feeling, and definitely unprepared for that event. Left a pretty sweet scar on my jaw line, makes for good campfire story/scar talk now.