Your first career goal is to surface as many times as you dive. Never put a big angle on the boat when they're serving the Captain soup. We take the youngest, least experienced kids onboard and give them guns and knives and let them drive. It's easier to obtain forgiveness than it is to get permission, but if you were right in the first place, you'd already have permission. Never flush the head when the sanitary tank is pressurized.
Good judgment comes from experience, and a lot of that comes from bad judgment.
But watch the bad judgement, that shit can get us all killed. Never piss off the guy that cooks your meals. If you don't know what it does, don't touch it. Never leave your spit-can loose in your locker. When you're spending two months in a 30ft round, 300ft long sewer pipe with 130 guys, it's best not to piss everyone off on the first day.