Playing table tennis years ago, I served and the ball caught the very edge of the table on my side and shot up almost to ceiling height, then came down on the other side and did the same again, shooting onto the floor. It looked rather more cool than it sounds when described.
I also did the basketball one at school, scoring from the opposite end of the court. Was gutted I wasn’t given at least 10 points for that (but understandable as the teacher was Scottish).