Outside of "field day" aka cleaning quarters, not often. During field day, every single time I crawl into a space that has a single speck of dust and thus needs to be completely overhauled according to the nearest Chief. They didn't design these places for humans, clearly! Ripped a fair number of good coveralls doing it too, and lost an uncountable number of good pens.

No, I'm not much into horror games! But it does sound like fun from what I've heard.

Silver metallic with black handles. My specific class of ship still had the old analog electro-hydraulic steering wheels instead of the fancy XBox controllers.

Usually there's a movie playing in either Crew's Mess or Crew's Lounge, or a videogame tournament like Super Smash Bros or COD2. Personally, I'd rather go to my rack (personal bunk the size of a coffin), draw the privacy curtain, and read a book or get some sleep in. Sleep can be a luxury after a long period of maintenance, and underway with all the pressure and salt water, there's plenty of that. There's also stationary bikes, free weights and other exercise equipment available on board, usually stowed in the aft machinery room or torpedo room, for people to work out if they feel like it, and snacks at the salad line in Crew's Mess next to the galley.

I've been aboard when a fire was called away in the torpedo room, and once more when there was a fire called away in the forward machinery room. Fortunately, nothing came of either situation, as you can tell since I'm posting today. As far as cool things, other than drills in which we simulate the launching of thermonuclear weapons, not really - the SSBN fleet does everything in its power not to do anything cool or exciting, so as not to endanger the strategic weapons systems!

Lol nice try China! No but seriously, the fact I get to work in a nuclear powered vessel by itself is the cool factor.

People yell, yes, and most of the time we don't mind loud noises UNLESS it involves hard objects hitting either the deck or the bulkheads (floor or walls). The reason is that most of the time everything is padded and sound insulated anyways, so something like the fans, pumps, motors and so on can spin up and do their thing without exposing our presence. Something like a hammer or wrench getting dropped into a bilge, on the other hand, transmits straight into the water, and that's when there's a manhunt to find out who did it, since Sonar hears that instantly and reports it to the Officer of the Deck.

5. Subs have crew members who have formal Navy diver training as a collateral (extra) duty. I think it came with some extra pay. They are there for emergencies, and have to do extra work to maintain their qualifications. They are there if we are away from home port and need underwater work done on the ship. Pretty rare, only happened twice on the boats I was on.