Shots I can never repeat again

Everyone has a shot they could never pull off again. One of my favorites was sighting in shotguns for deer season. Dad ran (still does) a 695 Mossberg with no scope. Here's why. At 75 yards we sat a golf ball on an old barbell hand grip. My brother and dad each took a shot, then it was my turn. "Aim 3 inches low" was his advice. So I did. The ball went flying! Had I hit it? Hell no. I hit the damned hand grip 3" below the top! At $2+ a shot, we didn't need to waste any more shots. Plus I knew I could shoot dad's gun just fine. But no way could I pull that one out of my butt again.