I didn't put this story on FB, because it sounds like I'm bragging. But in this forum, I think you guys will take it in context.
I play a lot at a local course about 10 miles from my house. It's in a small town in AL called Adamsville, population around 4,500. "They" cut the grass every couple of weeks. The first 4 holes are around an open field surrounding the Senior Citizen's center, so no one besides the disc golfers would mind if it grew too high. If I were in charge of maintenance, I might be tempted to let some of this work slide since I never see DGers during the day. But still, it stays in really nice shape most of the time.
Had a vacation day recently, so I was able to go and play during a weekday, which is not common. I saw "them" cutting the grass and doing the weed eating. I knew it would take them a while, so I finished my round and ran over to the convenience store a few blocks away. Spent $9 buying 2 for $3 Powerades and went back and handed one to each guy, and thanked them for cutting the course. Told them how I was new to the sport myself, and how I was teaching a few local kids at the same time. Told them we were usually there in the evenings, so they probably didn't see us, so I wanted them to know that their work was appreciated. You could tell from the looks on their faces that this isn't a common thing for them.
A couple of weeks later I was out there practicing throwing a couple of bags at a time into the field, trying to increase my velocity and distance by throwing harder while maintaining form. That meant occasionally I would pour on the power and a disc would fly in the wrong direction and fly into the road. A city maintenance truck drove by before I could get to it. They stopped the truck, got out and picked up my disc, and threw it back to me. Sometimes showing a little bit of appreciation works! I didn't want to get anything back from them - I just wanted them to know that their hard work wasn't wasted. They don't seem to see anyone ever play on the course, so this was my way of letting them know it did get used, and to provide a bit of assistance too.