20 years ago I had a near miss with an F-16 over Nurnberg. I could hear the noise of his engines as he passed just under my nose climbing. I'm sure he was messing with us, but it was a shock. I had a 737 full of pax. I filed a near miss report. A few weeks later a report came back saying that according to the Americans I was mistaken.
They cooperate when it suits them.