Exactly my point, I have NO Doubt that it happened just as our US Aircrew has characterized it, it has happened before, it is about respect, and typically in the world at large the flying community is very respectful and considerate of how their actions will affect others. NO US aircrew would do such a thing, not because they couldn't?? but because the risk to those on the "transport category" aircraft is so great!
Its very obvious that none of the pro-commenters are pilots, its also obvious that none have ever been inverted in "any" aircraft. I am a pilot, I have been inverted, to maintain level inverted flight requires enough forward stick to pull -1G, it is a lot of forward stick, it is very disorienting, and it does indeed cause "red out", it is more to the point very counter-intuitive....
Any Pilot in every Professional Air Force on the planet, who participated in such a foolish and disrespectful act would be immediately grounded, and "booted out" of that Professional Air Force, particularly US, UK, Germany, or France!
"BOOTED OUT!" and yes, I do know of some USAF Officers who were indeed "booted out" for far less serious infractions.
Filing a complaint is not about whining, it is about warning the other party that their actions are "un-acceptable" in any regard, it is about building a case, it is about evidence for when you do take action, that is all, and that is all I'm going to say about this case at present.
