Someone sent me this video earlier today. I found my self watching with a crooked head like a dog and speechless but still laughing. I didn't know what to say but I still watched over and over. The best thing he could have done was to knock himself out with the butt stock.
Camper nailed it... This is classic right handed guy who is (or thinks he is) left eye dominant. My little brother did a very similar thing when I let him shoot my Mossberg. In his case he basically laid his head sideways across the stock to try and line it up. Damndest thing I'd seen but he insisted on trying it. Needless to say it hurt.
Maybe it was because I handed him a 3in mag #00 load...we may never know.