Treat people as they treat you.
I've encountered this masses of times whilst boat fishing and i've lost one hell of a lot of ' important ' fish due to my boat partner/s not moving there line/s out of the way when a strong fish runs across them.
It's pathetic

really pathetic

you end up having to put the rod under the water and try to stear the fish away then PING, hooks gone.
I would believe my etiquette to be of good standing in general, however, what you see is what you get with me and if your a *osser i'll let you know.
I also believe there to be far far too many anglers in today's world who believe themselves to be FISHING GODS, with this in mind there ' etiquette ' is minimal to say the least and ther lack of respect, well

It is a sad thing but boat fishing success nowadays is down to angling ability, watercraft and THE BOAT PARTNER

P.S. it's not all doom and gloom mind........ i've met some absolutly fantastic guys and had some truley great days out on the waters.