I've played a lot of golf and witnessed 3 holes in one - one when I was in junior high walking nearby the green on a different hold, another one in high school golf where a guy skulled it, it nailed the pin and dropped straight in the hole, and last year at a conference/work best ball tournament with a guy who has played less than 50 rounds of golf in his life. Never had one myself. One of these days...
Craziest bad thing was in high school PE class our PE teacher thought it would be fine to hit golf balls into the baseball field batting cage (netting on the sides). Someone drove the ball directly into a support pole and it ricocheted backwards, hit a girl in the head, and knocked her out cold. She had memory issues for a long time and our high school never did that again (surprised they didn't get sued, they should have and would have in this day and age).
Craziest bad thing was in high school PE class our PE teacher thought it would be fine to hit golf balls into the baseball field batting cage (netting on the sides). Someone drove the ball directly into a support pole and it ricocheted backwards, hit a girl in the head, and knocked her out cold. She had memory issues for a long time and our high school never did that again (surprised they didn't get sued, they should have and would have in this day and age).