I'll answer your question at least. That bathroom looks tough unless you want a side ass shot or just an ass shot. Still, its possible. I would put the cam motherboard and battery hidden and taped behind the toilet porcelain where you are definitely not going to see. Then run the lens and lens cable up the steel water pipe until just enough of the lens can peek above towards the subject. tape it all or use Command strips (the kind for hanging pictures on walls). Command strips make it easy to put up, adjust, and take down and recharge and repeat.
I would suggest trying it. Leave it for a short period of time like 2-4 hours before picking up if possible. Check the footage and many any adjustments needed. You will slowly get more confident with your hiding spot and can leave it for longer periods like a day or so. I dont know how long that cam battery lasts but its probably 1 day max. Anon would love if you shared here. Just do it under a different name or IP so that white knight guy doesn't blow your cover.>>22974
Thanks for pointing this out to him so that he doesn't make that mistake again. But don't come here on a voyeur site to tell people not to take voyeur pics or vids.
Maybe OP is so fucking smart he loaded fake exif data.