At the time of the first Gulf war, I was working on the cross Channel ferries. During one particular return voyage from Boulogne, the Captain came on the tannoy and advised passengers the RAF would be making some low passes for "training purposes". We and most of the passengers spent a delightful quarter of an hour watching a pair of Tornados make a series of "straffing runs" at an altitude that just cleared the mast tops.
After 5 or so passes, they flew in a big circle around the ship before departing and climbing rapidly on afterburners to a huge cheer and applause from the passengers.