The British during imperial times built golf courses in India, only to encounter an unexpected problem: monkeys delighted in joining the game by picking up golf balls and dropping them in other places, sometimes nowhere near where the shot had landed or the intended hole.
Fences were useless in keeping monkeys off the course. Following the Darwinian principle of adapt or perish, the golfers finally accepted reality and changed the rules of the game. Should a monkey move one's golf ball, one had to play it from the spot where the monkey dropped it.
Given that monkeys were indifferent to whether they improved the golfer's lie by their mischief or not, roughly as many strokes were gained as lost through this expedient. The ball could be found in the rough after a shot drove it to the fairway; it could end up two feet from the cup when it had been hit into a sand trap.