"You won't believe this, but there is such a thing as- well, firstly you should know that I'm doing a bit on ear infections- and one of the cures is called an aural toilet."
"An oral toilet? That makes no sense. Also it's a bit gross."
"No, no, no. An aural toilet. It's... well, I suppose it's a toilet that goes in your ear."
"Yeah. I'll see if I can find a picture... oh, nope, that's just actual people sitting on actual toilets. Ooh, but there's a good one here of an elephant sat on a giant loo."
"An aural toilet is an elephant sat on a giant loo? Remind me never to go the doctors ever again."