Originally Posted by
DOUBLE BOGEY
...and the effect it would have had on this student.
Apologies for butting in but I think that Hughes500's point is that this wasn't a 'student'. The pilot in question already held a PPL(H) so, technically, he/she should have already covered 'stuck pedals'. If he/she couldn't recall what to do, they should've had a go at problem solving the issue, rather than just blankly saying 'I don't know' repeatedly.
I suspect that Hughes500's point was what would this particular pilot do if they had stuck pedals for real when flying on their own? Just repeatedly say 'I don't know' until they ran out of fuel, or spun in. Or work out what to do in order to get the aircraft back on the ground?
(And yes, unfortunately, mobile phones do often get dropped and then subsequently get caught in pedal controls).