I agree that it’s appropriate to accommodate bank anglers by not floating over the area they are fishing as best you - especially in small streams and in low clear water. In some situations you might ask them if they prefer whether you go in front of them or behind them. After all you have the whole river to fish, and they’re usually very limited to the water they can access. I don’t think this is as much of an issue when the flow is up and the water has some color to it, or if the hole is deep. Under these conditions the fish will not spook easily. I also think some bank anglers tend to be overly concerned about the effects of boat traffic on their fishing success. I can recall a time a jet sled ripped over the hole I was fishing from the bank at full throttle in a relatively small clear stream. I caught a fish my very next cast. Its funny that you mention your incident on the Green. A few summers back I floated through a hole that two bank anglers were fishing. The river entered the hole through a fast narrow shoot and I took my boat through the only path available. One of the bank anglers threw himself on the his back with his arms up in the air kicking and screaming (literally) and shouting obscenities and something about that their was no reason to fish from a boat in a river this size. According to him drift boat fisherman had no right to fish this stream. We assumed he had a few screws loose. If you spend a lot of time drifting rivers, you’re eventually going to run into one of these tomato faced bank anglers, regardless of whether or not you practice proper boating etiquette.