Sorry if I’m contributing to a discussion that shouldn’t be discussed here, I’ll understand if it’s deleted or something.
At some point when I was in elementary school I had a friend tell me it was okay to pee in the shower because it just gets washed away with the water, so I started doing it mostly just because I could. I don’t do it very often anymore, and would never do it in any shower besides the one at home, but on occasion if I forget to pee before I shower, the warm water makes me really need to pee, and the toilet in the bathroom with a functional shower doesn’t work (as in, it no longer even has water in it because we have two other bathrooms in the house so never got around to getting it fixed), and I’m not going to risk being seen by someone else while I’m naked, so if I was going to use a toilet, I’d have to dry and clothe myself (not trusting myself not to drop a towel I was trying to use to cover up) only to disrobe again and return to the shower when I was done, so especially if it’s near the beginning of the shower when there’s going to be a lot of soapy water going down the drain and over the shower floor afterward, I figure it’s more efficient to just do it there if I suddenly need to pee. I also make sure I’m over the drain when I do it so I can be pretty much certain that it all got washed away and there isn’t any left on the shower floor when I’m done.
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Yet in my new wildness and freedom I almost welcome the bitterness of alienage. For although nepenthe has calmed me, I know always that I am an outsider; a stranger in this century and among those who are still men.
-H. P. Lovecraft, "The Outsider"