When I was first taking aerobatic dual, my instructor spent some time discussing the use of the parachutes we were required to wear. We set a hard altitude at which we would get out of the airplane if we could not make it do what we wanted, be it due to structural failure, unrecoverable spin or other nightmare. In a joking manner he recited a brief mantra: “When in danger or in doubt, pull the handle and step out.”
The handle to which he referred was the cabin door release handle.