18 Gutter Balls

My Pop-Pop has been the man I've wanted to perform for my whole life. My father and I are both named after him. My son is named after him. For most of my life, Pop-Pop has been an encourager... except for this one time! When I was 12-years-old, I was competing in a Saturday morning bowling league where I was one of the best in my league for my age. I carried an average around 135. But on one occasion, I defied all sense and threw a low-game of 12. There are only 10 frames in a game of bowling...