I've been to Gibraltar a couple times within the last 5 years, and all on the Rock, except for the apes, were well behaved. Seriously, the advice you give the USN is what they will follow because they are kept on a very short leash. When I was in Uncle Sam's Navy many moons ago, this wasn't the case, and we lived fast and loose on and off liberty. My personal experience was with the RAN, and those guys would never fail to tear a joint up. Getting into a fight with them was out of the question because they were always too busy beating on each other. We would just sit there sipping our beers, and watch the show.