your mate mouldybrain is obsessed, isn't he; nothing better to do, than just chatting shit.
i'm embarrassed to be born in the same country as people like him, i think that there must be a tiny part of his brain missing, you?
i know :D
i work on "boats" and also happen to know a couple of submariners (two charming, calming chaps), and some ex navy and they are not at all like he seems to sound :D