I've been whacked, been brushed, had them land in the boat, glance off the gun barrel and even caught one that fell into my hand.
The best was when I was hunting with my best friend on PEI and a trio of black ducks came winging in. The blind was on a dyke with fresh water on one side and salt on the other so we could get good shots at birds coming and going and still have them land in the water (no dog).
The black ducks came straight at us and I folded the second bird and then spun 180 degrees to take the lead one as he was zipping overhead. I could see my bud shoot the trailing bird as I spun just as I was about to shoot I felt an awful impact to the back of my head in the same instant of a shotgun blast. My gun flew out of my hands into the marsh as I dropped to floor of the blind -- my hands instinctively reaching for my head and coming away bloody.
"YOU SHOT ME!! YOU f**kING SHOT ME IN THE HEAD!!!" I screamed.
There was stunned silence from my confused and frightened partner for a few seconds and then I heard the rustling on the floor of the blind --- soon followed by my bud's laughter. The damned duck he had shot had fallen and hit me square on the back of the head at the same instant he had fired at # 3 and that I was about to slap the trigger on the same bird.
Once he had shot the second bird he and I took our eyes off of it and concentrated on the third. We never saw the duck he shot come down and take me out.