I've heard about owners who wanted to find out if their watch was bullet-proof by putting it in the freezer. That's not something I understand relative to a fine, intricate and costly instrument.
I —and I know many others —have worn their automatic watches while playing golf, tennis, or other sports. Despite high survival rates (after all, these watches are tough), I'm unsure that this makes sense. Fortunately for my watch, but unfortunately for my golf game, my stroke just doesn't have the power of a pro's swing. But all I need is one good impact, and the watch will have a problem.
I recall one collector from Scandinavia asked if his IWC watch could withstand him chopping wood. And I recall a rider in the Tour de France wearing a fine watch. I'm unsure why either person would want to test his mechanical watch to that extent.
Keep in mind that an automatic watch winds with an oscillating weight. All mechanical watches work due to swings in the lever escapement. And the shock protection mechanisms used in modern watches, KIF or Incabloc, are excellent but do not provide perfect protection from all blows at all angles.
Perhaps I'm too protective an owner, but I never understood why the Tour de France rider would risk even scraping his watch if he crashed. But perhaps that's just me.