::raising hand:: I also walk around the grates. They disturb me deeply for some reason (ha! I doubt
reason has much to do with it) and I walk around them. The idea that terra firma is shot full of holes freaks me out. My brother once sent me a story about a physicist who spent his life studying atomic structures, and became so concerned about all the space between the components of atoms that make up matter, and particularly floors, that he'd wear oversized shoes so to not fall through to the level below. It makes sense to me. Unfortunately.