I remember my father, who was there, telling me that around the time of the Japanese surrender at the close of WW2 there were night-time attacks by anti-surrender imperialists on several U.S. ships in Tokyo Bay. I remember him saying that attackers climbed up the anchor chains and that there were small battles on several ships including a hospital ship? I can't find any support for this story online. Perhaps I'm confusing it with a different incident? Thanks!
Edit: More information -- This was a story told to me by my father about 50 years ago when I was perhaps 8 years old so it's somewhat unreliable from several different standpoints.... :-)
My father was a radar technician on a U.S. destroyer and since he was a "College Boy" math major he was sent over to join the prize crew on a Japanese ship (I think the Nagato) His assignment was to check out the ship's electronics and to write a report on what he found. He stayed on the ship for some time with a bunch of marines. The marines were all eating canned rations but my father broke into the Japanese officer's mess and raided their supplies of smoked scallops and other delicacies. He also brought home some Japanese electronic test equipment in lovely wooden enclosures which I played with (and unfortunately disassembled and destroyed) when I was a boy.
He said that one night while he was on this Japanese ship a group of Japanese fanatics climbed the anchor chain and killed the lookout on the bow. They were then all killed by the marines on the prize crew. Apparently several attackers, stumbling around in the dark, also fell through bomb holes in the deck and drowned in the ships fuel oil tanks.
Edit2: Thanks All for the thoughtful discussion. Note that I'm completely uncertain about the exact timeframe. Could this perhaps have occurred weeks or even months after the actual surrender? My father was on the Gearing class destroyer USS Hawkins which was very late to the war -- but wikipedia does put her in Tokyo bay on August 27th. He also had a good story about being put in charge of a work crew of Japanese marines rebuilding a ruined stone jetty. He said he was terrified at first but the Japanese SGT had it all under control and all he had to do was sit there and be official-looking with his holstered 1911.