Flaps/Slats...
To justme69 in post #1917:
I think that it is very unlikely that you select F11 without actually getting F11 - without any other warning signs.
In any case the flap handle is connected to the slat handle, meaning that the movement of the handle(s) to first notch will deploy the slats, so even if you for some reason did not get F11 when moving handle(s) to second notch, you would have slats out with the important consequence that the stall speed is lowered with - as far I remember - 40 knots.