A friend and CPL brought his Comanche back in gear up years back,it was fitted with a buzzer warning to safeguard against such misfortunes.You probably won't believe it but he mistook the buzzer for the stall warning going off on short final.What he'd done was scud run 200 miles back in to base,banked hard to miss a Telecom tower on the way. Stress is the telling thing.Just like Lagaurdia throw a little unexpected incident into the mix like a quickly developing squall at Scone and you don't really need an investigation.