During the earliest days of my life, I remember swinging my younger brother on a swing attached to a big oak tree in our front yard. As I remember it, he was standing on the swing, and I was shaking it back and forth, trying to either give him a good time or shake him off. I can’t really remember.
But as it happened, I shook him right into my own face. The swing violently collided with my mouth, smashing right into my two front teeth.