Something Castiel understood perfectly well was the concept of "eye for an eye." This wasn't quite the same principle, but if Soushi was willing to give out his room number, then he was as well. Even if it turned out that Soushi did have some cunning scheme hidden away behind those polite words, Castiel felt that he would be able to handle whatever came his way. Weakened or not, he could take care of himself.

"My room is M39, so we're in the same patient block. If you want, we can meet in the perpendicular hallway within the block, or in the hallway right outside it." It didn't matter to Castiel as he was comfortable with getting around that area. Soushi, on the other hand, was still new and had a larger chance of getting lost.