" Aru glared. 'Well, you swim in your own toilet!'
The fish did not have an eyebrow to raise villainously. But its tone managed the effect well enough, 'And you'll never know when I use the ocean as a toilet. Enjoy the mystery.'
It flapped its tail and swam off. "

― Roshani Chokshi , Aru Shah and the Song of Death (Pandava, #2)