I'll tell you another thing. Whether I read it here, read it somewhere else, heard it myself in his testimony, or had a dream about it, I THINK OP said at one point that he "kneeled down." It was hard for me to follow all of his goings this way and that along the passage, along the wall, along wherever. But I picture it in my mind that he was close the edge of where one wall is opening into another space. He kneeled and paused before making his next move.
For me, that raised the question of his legs. Can he kneel from his stumps? Can he kneel from his legs? Why would he leave his legs on RS side of the bed unless he wanted to make an excuse for why he didn't slip them on right away - IF indeed he wasn't wearing them. If not, why say "kneel" unless it's just a figure of speech like a blind person saying, "I saw that."