8 or 9 years ago, I went duck hunting the morning after a strong storm here in Colorado.
The storm dumped 3 feet on the eastern plains. If I recall, it was Dec 3rd, and I know for sure it was -8 below with some wind, as I walked out to a spot on the Platte river near Sterling, about two miles from my truck, alone.
When I reached my spot, I was on top of a cut bank, and looked down at the sandbar with my headlamp to find a soft sandy spot to jump onto, right next to the ice ledge that had formed on the water. I took the 2 1/2 foot leap down, but the sand had been wet, so instead of the soft landing I anticipated, I hit ROCK HARD and snot-slick sand. My feet immediately went out from under me, and I pitched forward, broke through the ice, and into the South Platte. As I pitched forward, my knees cracked into the bank (read: extreme pain), my shotgun went under water, and I ended up drenched.
To this day I can remember pulling my shotgun out of the water and watching in awe as my headlamp shined in it: it froze from one tip to the other, solid, in 5 seconds, right before my eyes, and the ice continued up my gloved hands, up my sleeves, to my shoulders. In 20 seconds, I was an ice block.
Unfortunately for me, it was 10 minutes before shoot time. Had it been an hour before sunrise, I would have headed back to the truck for SURE. It was a pretty cold and dangerous situation.
But, the skies had opened up and mallards were working the river right in front of me, and a hot water slough behind me. THOUSANDS of mallards bombed the river. To this day I have never seen a morning like it.
I shoved my frozen (empty) shotgun down my waders to defrost it. I finally broke the action open, and cleared the barrel with a stick. The magazine tube was solid ice.
I was finally able to take my first shot 30 minutes into daylight - my Rem 870 having turned into a single shot. Watching those mallards while I dry humped my shotgun to defrost it was torture.
I was so cold I could only manage to throw out 3 decoys. But I shot a limit of mallards in the next 15 minutes, one shell at a time. Each miss was AGONIZING. After the last one splashed down, I grabbed my gear, and HAULED AZZ to the truck.
By the time I was in the truck my body was shutting down, shivering, and the fingertips on my right hand were waxy, white, and numb. Worse, I had to head straight into work, and had no chance to warm up with a shower. To this day, my fingers on that hand are sensitive to cold.
Looking back on it now, it was a great hunt. Also stupid as hell.
Then there was the time in North Dakota, outside of Kenmare. It was o-dark thirty, I was alone miles from anyone within earshot, and 1,000 miles from home from a wife who didn't expect to hear from me for another week.
I was walking in thigh deep water along a slough, in waders, loaded with decoys. My right leg dropped into what I think was a beaver hole that had no bottom. My momentum carried me forward and I damn near broke my leg off in the hole. More alarmingly, the drop brought the water up to my chin. I was an inch away from drowning, and had no traction/leverage to get myself out. Long story short, after about 5 minutes of struggling I was able to use my shotgun to push myself out of the hole, and to safety.
I've had a few other close calls (damn near lost it down a cliff on Deer Creek in California while hunting mountain quail, almost drown while duck hunting at Sacramento NWR, nearly flipped a boat in a raging flood coming down a slough on the Sacramento River in the middle of winter, etc, etc).
Keeps a guy on his toes!!