When I was a staff officer at HQ ACC back in the early 90s we had a program to lease Learjets from the private sector to use as ‘ducks’ to simulate Commie bombers for fighter and GCI controller training.
Most of the pilots were retired fighter pilots. We had several serious incidents where our pilots were doing unauthorized and unsafe stunts in our Lears, including roles, unbriefed low level flying, even rolls at low level!
Military pilots, especially old fighter pilots, are certainly no less likely to shine their asses than any civilian, maybe more so.
Just look at this recent USMC collision between an F-18 and a C-130 in Japan!
We put a stop to the worst of these guys antics by using ACARS and GPS logs to keep an eye on them.
The program still exists today, and it is a good one. But where fighter pilots are involved, keep an eye on them! They might revert to their childhood at any time [OK, I’m kidding. Mostly.]