In a mooring
field or a marina, IF the owner has left the boat that way for a long period of time, I use the "anarchy method" as well. Do what you need to do to quiet the situation. Tight mooring situations REQUIRE a higher degree of consideration on their part.
I even had an occasion where someone had taken my WELL marked mooring, when I came back at night. I anchored temporarily, and used my dink to row/tow his boat several hundred feet into the harbor, then dropped his anchor
. He came out drunk & confused, but got over it.
... When hurricanes are coming and it is down to the last 6 hours, with 60 knot
winds, I frequently find that about a third of the inhabitants didn't even come down to double up their lines! Then I go secure the boats upwind of mine, myself. If I run out of my own lines, I use "whatever" is available off of their boat.
If I am anchored well for a hurricane
, (which took me all of two days), then an idiot zips in at the LAST minute... directly upwind, and drops a small, single
hook, then immediately splits... I go put one of my spare anchors on it. When the storm is over, I remove the evidence as quickly as possible.
There IS a boaters etiquette that forbids "messin" with another persons boat, but if they are irresponsible and leave their boat making a hell of a racket, or otherwise endangering your boat, then etiquette takes a back seat to: "forgiveness is sometimes easier to come by than permission".
If you don't damage their boat, DO WHAT YOU'VE GOTTA DO! They'll get over it.