They probably moved the wall after the toilet was already installed. That half-obscured window covered with plywood above the toilet is telling enough.
📃✍️ I've been in this bathroom 11 years and 37 days now... still haven't found the toilet. I've given up hope. Tomorrow I'll head towards the exit and just use the gas station down the street...
p.s. - ohh no!
Stride down a hallway like Dio, alongside my infinite alternate selves, synchronizing perfectly as we sit upon the porcelain throne
Bonus points if it's plain black tile to the right or left (don't need mirrors for that part), but a mirror prism on the back wall that'll make it feel like the mirror dimension. It'd kaleidoscope little warped fragments of you as you walk through if you do it just right