If you fish docks you will run into this, Have been cussed, yelled at, rocks thrown at, even sprayed with a water hose. One guy had motion sensors set up and when you got close to his pier sprinklers would come on, marine police made him take them down. If some one is fishing their dock, I fish elsewhere, if they come out to fish while i'm there, I leave. If they start cussin and fussin, I show them some slabs out of the livewell I just caught off their pier, but I still leave, not worth a confrontation. but I still go back when ever I want.
If someone comes out and starts talking nice I ALWAYS offer them some fish, This seems to make you welcome back 100% of the time. But always remember, they is gonna be butt holes EVERYWHERE you go.