God must have appointed one angel to be in charge of farts, and he has a devious sense of humor.
It matters not, where you are, if you have to fart; sitting in an examination room waiting for the doctor to come in; the only person in an elevator; in an empty meeting room, waiting for everyone to arrive, the moment, the very moment, you release the odoriferous secret from your nether region, they all show up.
Once in high school, I was on a first date with a girl. We stopped and had burgers and fries, etc. and I had to fart like a thunder clap. A brilliant idea came to me. I would open the door and let her get into my car, and I would release the devilish thing as I walked around to the driver's side. The thing almost propelled me around to my side of the car. I opened the door and voila, guess what came in with me...you got it. I thought quickly and looked at the girl; did you fart, I asked her.
It was our last date.