Sounds to me like a "joke" presentation - I imagine young Lt Rose in charge of the ship's boat taking the crew into harbour, then by a feat of lousy seamanship, filling the whole thing with water. "Up Periscopes" they cry, as "HMS Soak" vanishes under the waves. OK, so I've got an overactive imagination. But if he'd managed to Soak a Captain, or better yet, a Commodore, perhaps it would have been worth a commemoration.

We'll probably never know.

Andrew