When the stall warning sounds?
i.e., if the stall warning goes off, THS must automatically roll forward to at least neutral asap (or go nose-down if you -- controversially -- want to simulate a stick-pusher)
So if as I rotate on takeoff, the Stall warner erroneously sounds, the THS drives the aircraft into the ground
PS
...to at least neutral
What is "neutral" in airliner terms?