OT: There have been some places (offices, computer rooms) where I and others worked barefooted and/or in shorts as things were very informal. I suspect that some TSA folks would dress similarly if permitted to.

In later years I ceased that practice as I became a "consultant" and wished to maintain a more professional appearance. I was now one of the few wearing a good shirt and necktie. Except I would occasionally wear such things as Hawaiian shirts and shorts on Fridays.

Does fainting occur so fast that one doesn't have a chance to squat down or kneel down before falling?