When I was a student in Grenoble every room in the halls had a basin and a bidet behind a screen. Either students were expected to have very active sex lives or it was a nod to the practicality of the bidet for that night-time tinkle.
I pee on the lawn every morning and very nice it looks too; the nitrates are doing it good. And yes, the shower as well. I used to pee on the compost until I had a bad incident - I'd thrown an old bird's nest on that was hopping with bird fleas, despite Mrs Gti telling me to burn it. I started noticing small bites around my genital region and then one day I realised that every time I went for a tinkle in the compost, hungry fleas were sensing my body heat and jumping on me for some blood. Mrs Gti went absolutely mad - hopping mad in fact and made me pay to get the house sprayed for fleas.
Another peeing incident: I had a GF who was an ICU nurse and one fine day, out on a country walk, she confessed that she had often wondered what it felt like to have a willy. I strolled over to a handy large boulder, unzipped and invited her to get behind me, reach round and be my guest. She went at the job with relish and much giggling and I was just telling her that it wasn't a fire hose, when I heard a noise from behind the target boulder. Shook off and went round to investigate..... and there were a dozen Ramblers, sitting enjoying their sandwiches, all with amused expressions on their faces. Ooops!
Don't get me started on the joys of al fresco poos, that's another forum thread in waiting.
The only place where I definitely do not pee is the swimming pool - that's not nice.