Stinkerific

My colleagues are all on vacation, so I have my office to myself. I know what you're thinking: I can fart. Well, that's not entirely true, because other people come to my office to see me. You would have been on the right track towards stinkiness, though: when I come in each morning I have to open the wondows and leave the door open for five minutes to air the place out. Odd, or normal?