There are NO CIRCUMSTANCES, in any civilian flying opsor non-tactical military operationsworth busting the MDA or DA for.
Gee a bit rigid there tiger. I can think of several circumstances where I would consider it; Uncontrollable engine fire, catastrophic airframe failure, and certainly fuel exhaustion (whether pilot induced or otherwise
)... One grave risk balanced against another. The pointy end of what we do every day I would have thought...
FWIW I reckon Torres has got the right idea.