Just to drift away from the circular discusssion a little, I wonder what was the effect on those a/c, waiting innocently on the taxiway, of the thrust pouring out of the rear end of rapid full umph GA. I'd expect 'storm force a lot' buffeting those beasts, and scaring the poo out of the pax who could see & hear nothing. Well, up to that point anyway. I guess they heard it. If they did get a ground based ride in a washing machine I wonder what the capatins said by way of explanation.