I was doing some work at an air base and they flew two A-10’s out of there. The first morning I was parked on a on-used taxiway.
I saw the A-10’s aways off pointing in my direction and then they taxied off on another runway. Shortly afterwards a guy drove over and told me not to be on the taxiway before 10 am - park on the infield. The A-10’s had a target at the end of my taxiway to test their sights. “The guns are loaded, of course they aren’t armed then, but....”
I guess they would take off and spend hours at a firing range shooting at stuff and practicing.
One day I was standing on top of the van taking pictures of the site. One A-10 landed, and the other (right behind him) came right over my truck at low altitude. I just laughed and thought - “Well, I’m ‘dead’!”
The first photo is a bad photoshop, the second is of a F/A-18F which the Marine Corps never flew, that’s Navy. The bottom photo is of an F-16. Also, most military aircraft don’t have to slow to 250 kts below 10,000’, they have a waiver that doesn’t apply to civilian aircraft which allows up to 300 kts below 10,000’.