Re: What would you do?
I always share the pattern I'm using and let them know where I've fished and where I'm headed. A sort of "pay it forward."
I've only had one experience where a guy jumped into a run uninvited. As I was muttering under my breath, he said, "Eric?" and I said, "Doug?" He was a friend of mine (it was winter and we were layered up). He offered me the extra seat in his boat and we had an epic day (I gave him a rash for jumping into the run), including a 26" brown I caught from a run he hammered for 30 minutes beforehand. Karma.