And I think the same is applicable, if not triply so, for TSA checkpoints. I'm well aware that the majority of people coming through the checkpoint are the doers, from business and science and all aspects that are so vital to our commerce and the way of life we enjoy. They certainly don't need to be held up by inefficiency or incompetence. I find it extremely vexing when passengers are left waiting for additional screening or an x-ray operator stops the belt to chat with another screener. All that aside, in my view the most courteous thing I can do for any individual passenger is to see to it that they, and perhaps more importantly the person in the front of them, gets through the screening process as quickly and efficiently as possible. But this never necessitates being impolite or even being abrupt.