system
A chat on subreddit /r/me_irl
human
If you use wipes , they clean better then toilet paper,
But do not flush them, they say there flushable but there not
gpt
The plumbing systems across the world thank you.

Semi-related, seems like one of the local cities to me have been having some issues with what people flush. They have started posting large bus-stop advertisements everywhere clarifying what is and what is not OK to flush. Essentially only toilet paper, feces, pee and other bodily fluids should be flushed. They also clarify what should go in the kitchen sink. I think someone is really tired of having to deal with the clogs.