The German navy does this regularly, I guess. Commit suicide, I mean.

So I suppose you could call the one going on presently a ritual suicide, albeit slower than those of the past (look what’s been going on with the Bundeswehr for the past thirty or forty years or so and you’ll get my drift).
One hundred years ago, the German High Seas Fleet committed suicide. On June 21, 1919, the crews of seventy-four German warships attempted to scuttle their vessels in order to prevent the Allies from taking them. Over the course of a few hours, fifty-two modern warships sank. In the modern history of naval combat, there has never been an event as devastating as the self-destruction of the German fleet at Scapa Flow. The scuttling immediately became legendary, closing one chapter of German naval history and opening another…
Indeed, the Germans had prepped the ships for scuttling over the previous several months, removing doors and taking other steps to reduce watertight integrity. They waited for motive and opportunity. As the Paris Peace Conference dragged on, both the French and the Italians had made claims upon the fleet. As the deadline for signing the treaty approached, both the Germans and the British made their preparations, the latter to seize the ships and the former to scuttle them.
On June 21, a comedy of errors ensued. The signing of the treaty was postponed two days, although it is unclear how aware the German sailors were made of this fact. The British commander decided that the fabulous early summer weather offered a great opportunity for practice, and the bulk of the Grand Fleet left Scapa Flow for maneuvers on the morning of June 21. Only a few patrol and utility ships remained.
Admiral Ludwig von Reuter gave the order for scuttling, and every German ship obeyed. The British didn’t notice until around noon, when the battleship Friederich der Grosse began to list noticeably. At this point, the rest of the fleet raised the Imperial German Naval ensign, which the British had officially forbidden. At that point, the scuttling became a race between the water and the Royal Navy. The Grand Fleet, notified by radio of the sinking, began to return immediately. The few Royal Navy ships in attendance picked up survivors, but were unable to save very many of the sinking ships.