I fondly recall playing a little pick-up baseball game with some neighbors at my grandmother's vacation home in North Carolina. Since we were just kids at the time, my grandfather didn't see any danger of us playing rather close to the house. He didn't think we had the power to really hit the ball hard enough to, say, break a window
After a few pitches, I managed to really give it a good whack. Lo and behold, the ball found its way right into the kitchen window where my grandmother was cooking a lovely dinner. My grandpa was a bit frustrated, but grandma reminded him that he was the one who didn't think we had the power to break a window.
Just a fun little story that came to mind when I saw this prompt for writing.