The awkwardness is palpable enough for even Walter to sense, and he falls silent for a moment. Still, it isn't long before he starts smiling again, the expression just slightly forced. "So... do you know why that was done? I..." He was about to say that he'd looked at the topographic and utility maps of the area, and it didn't seem like the basement was likely to flood, which was his immediate thought - this far from Silent Hill proper, it was more likely to be something mundane like that - but for once he manages to realize just in time how much creepier and more suspicious that would sound. "...always wondered," he finishes lamely.