They were used to even larger baths, but in this day and age they were a luxury to the rich or hotel-goers. She hadn't even thought yet about his death. But when he propped the door with a rock she looked at him curiously. Everyone had their quirks, but that seemed very ritualistic to her.
And it wasn't until the last thing he said that made her realize. Even as she moved in closer she looked back to the rock and then at the position of the bath and noted how it wasn't touching any walls. Escape routes, of course.
"Well, right now you have nothing to fear," she said quietly and kissed him.