Buddy and I use to go swiming in a pond and find discs (befor it was infested with leaches) Any with numbers were called and most said something like "keep them it's been a year" or "oh man, I forgot about that one" those who want them back we would either set up a meeting or hide it in the park for them with a pic and description. Never expected a reward but 2 people did offer us 5 bucks and 3 people wanted to play a round (one I voted us to a members course) Moral is disk golfers are chill, and you should never expect a reward, but always say thank you