The joke that is not told any longer is: To take a shower all you had to do is soap up the shower walls and spin yourself around in the shower. Showers have gotten larger with the arrival of large ships making the joke obsolete.
I thought the classic for the guy who put all his clothes out the previous night; he left the ship wearing the shower curtain.
Eventhough we have all heard these a number of times it still get a lot of laughter.
O F C'er