Not me, but in my girlfriends house, there is a door underneath the staircase in the dead center of the house. the house is pretty big, but inside, it's a small little room, like for six or so people kinda comfortably. I've always wanted a cellar though like in the movie tornado. lol. maybe soon I can get pics. We live in an apt right now, so we won't be going home for a while.