There are strong rumours of giving " TIF's " to tour buses. But I have never seen it first hand.
I did however watch with my own eyese 2 trikes doing low level formation flights slightly after published last light (but with some remaining visibility) over the runway in both directions - ie they were kind of flying a barbell pattern over the runway and a couple of the outlying hangars. From where I stood it looked like windsock height, but it was probably 50ft or so.
If it was GA the pilots would just about be locked up, but RA (Aus) seems to laugh it off.