About three feet from the shower was a trough-like structure built into the floor, slanting towards the wall. A bar was set into the wall, sticking two-ish feet out and only a little below the height of his back. He might have questioned what it was without the paper roll hanging from a little stand near the front of the trough. He even spotted a small pedal built into the base of the toilet paper stand, which he assumed was to flush the pony toilet.