There's a course a half hour from me set up in a city park, a couple was picknicking by hole 2's basket. We asked them politely to move because we didn't want them to get hit and they basically told us to F off. So we threw and one of the discs almost hit them so they flip out and yell about how they didn't know there was a disc golf course here while they were sitting 15 feet from the basket and we had asked them to move. They tried to steal a disc and throw it in the lake but we got there first, very frustrating.