@Jay: I've once seen a B1 do a low fly-by in which he was doing a roll, but at about 130° he stopped and rolled back. That looked way more dangerous to me than doing the complete roll, as that changing roll direction part appeared to take more time than continuing the roll.
That moment was also one where I realised again that I have serious concentration issues at times, as somehow my attention drifted towards "dreaming" somewhere in those few seconds of fly-by, eventhough I was massively interested in it. So I more or less missed what he did exactly in that roll, but I distinctly remember that I was shaken out of my dreamy mind when I saw something wrong about the roll, IE I didn't see a roll but saw the plane returning in the different roll direction. I don't have concentration issues in the sense that I can't occupy myself with the same thing for long periods - I certainly can-, but my mind wanders very easily into not too conscious dreaming. Something I have to take into account when doing my job: I don't try to work continuously for an hour. I work very intensive for 10 minutes, take a 2 minutes break, work again for 10 minutes, etc (roughly, no chrono involved
). So I work like a bazooka rather than a machine gun.
Anyway, I've also once seen a Concorde from above. I was in another plane, flying higher as the Concorde was descending
. That must have been one of the very last Concordes coming back from the US in the days after the Paris crash. It didn't go to Paris, but to the Concorde airport in the south of France. It was a nice sight (didn't last long though before it was out of view, and unfortunately we flew very far apart, it looked tiny), and the only Concorde I've ever seen except for just the tail of one from the highway near CDG.