It does seem that etiquette has gotten a little worse(salmon season on the rivers especially), but I do believe it has to do with one or a combination of three things: inexperience, ignorance and plain old I don't care as long as I get mine. I agree when fishing a terminal area on a river the only etiquette you can expect is some courtesy, but I believe a lot of anglers who frequent the terminal areas carry their methods over to the rest of the river. My rant is fishing a run and and boat floats by and start boondoggin' through the run. Guides sometimes get a lttle aggressive when they are trying put their clients on fish because they under pressure to produce, but that dosen't give them the right to fuzz up the water your fishing. The best response is just to ask what their intentions are and if he is a jerk or flipant to you ask for his name and tell him you'll make sure not to hire him in the future.