np, from the info I have recieved, the showers could be communal or could be private, depends where you are, (and in one case I had someone say officer/ncm).
as for the 'shower ettiquette' it has been a while since I laughed. how do you expect to get clean if you're wearing a bathing suit, 'suck it up butercup'. you can't be afraid of a little nudity, everybody has the parts. besides, after a long day, who cares, really.