Hi, Kitty, and thanks! Ironically, I'm back-end-to, and that kind of noise (a/c, fan, etc.) actually makes me worse when I'm in one of those creeped out moods! It's almost a claustrophobic feeling, that I can't hear what's going on. Not that there's ever anything going on, but once you get irrational, it's hard to put 'er in reverse.