skittles
when a student has had 150 hours of dual from three instructors and I've had her for 12 hours and finally thought she was doing ok, only to be surprised at NOT ONE BUT TWO complete loss of altitude awareness in the traffic pattern...I made the right choice.
and I think bearfoils amusing comment is right on...colgan 3407 would be there today if someone had told both pilots something wasn't right and to take up knitting.