EA had a B727 crew fiddle with the emergency extend switches at cruise. The idle time argument was, "if I select retract, nothing will happen, right?" Well, the armed the system, selected retract and out came the slats, all snaggled and damaged, a few parts falling to Earth. Another C-5 crew ignored the Mach limit and also damaged them pretty badly. Point is, high lift devices on Part 25 planes are for low altitude regimes.
The Falcon 10, perhaps other Falcons,, auto deployed the slats approaching the stall and, IIRC, auto retracted them, if deployed, to force a pitch over at the stall. Then again, the Dassault pilots performed all kinds of acro in 10s.