If only the cutty had something he could sit on and take a crap. I feel like I've seen something like that on other ships, a device for crapping in. Oh if only I could remember.
Unless I am very much mistaken on other ships it's a wall mounted metal hoop you can sling a trash bag from. You then tie the bag off and throw it out the window.
It's where the term 'Slam Dunk' came from as the hoop isn't very strong and those foolish enough to try to sit on it rather than squat over it are dumped onto the floor by the thin coathanger-wire metal and invariably end up with their derriere inside the trash bag with its unpleasant contents.
"Yo Roberto, why you no flying that Cat anymore?"
"Too many Slam Dunks by the chef were giving my crew disintry, dude. It was cheaper to get a Railen with those sophisticated Xi'An toilets than watch my ship Protlife medical insurance premium go through the roof."