Hi,
Do not allow the aircraft to stall or in any other way exceed the limits of the flight envelope. Bad things can happen. Simple basic piloting skills.
Leave the exploration of limiting corners of the envelope to professional test pilots, they know how to do it safely.
A little remind:
Actually (mainly for economics reasons ...) all FBW planes are cruising very near the "coffin corner" and any little "trouble" can put those planes out of their flight envelope.
The AF447 case come to mind (until the contrary is proved)
So ... maybe the FBW planes must be piloted by "professional test pilots" only ??