Law professor Michael Froomkin decides to not go through "the puffer" just because a bored and rude TSA agent wants him to.
As for myself, I haven't flown in years. Airplanes are uncomfortable and jam-packed, I never have enough room for my legs and I always get sick on landing. Airports are paranoid places now that feel more like prisons to me than a place to start a journey. Frankly, I'd rather drive or just not go.
It's not that I'm scared of flying. Airplanes are still safer than many, if not most, modes of transport (on the statistical scale). It's just that I hate discomfort being forced upon me, and I hate being treated like a criminal in the airport or cattle on the plane.