Once I was caching with my dad and we were looking around a tree near a supermarket. An employee walked up to us and asked us what we were doing. I told him we were geocaching, and what that meant. He didn't seem to believe me. He walked away with a weird face. We couldn't find the cache, and as we walked away, a police car pulled up into the parking lot. The employee walked back out and started to talk to them, and pointed at us. We walked over in time to hear the police officer saying "Geocaching's a real thing." The employee started complaining, then walked away furiously. One of the cops walked up to us and said: "great to see a fellow Cacher", and shook our hands. And then we drove away.