Great topic and great advice guys...
It amazes me sometimes just how rude some people are. It doesn't matter whether you are on the river or on the road.
A golden rule that I always try to go by, if what I am about to do may be in question, is "Do unto others as you would have them do unto you." That was my mothers wise words.
My Dad, well he instilled in me... "If you are going to do it me, I am going to do it to you!" Which usually meant a war of words between my parents, usually something about undermining.
In all seriousness... The best thing to do is to think of how you like to fish and treat that person in the same manner.