Well if you're frightened someone has over stressed the plane - don't fly.
But if you look at the number of structural failures you'll see its incredibly small and in no way represents some of the alarmist cr*p that gets typed on these fora.
Floating things in the cockpit is pretty harmless and recovering from some poor executed 'death dive' is pretty easy. Must be I do it every year for my permit renewal VNE test flight....
Of course you could always buy your own aircraft and forget the fear!