This is a scary scenario. The pilot of the United Airlines plane you're flying on suddenly has a heart attack. A flight attendant asks if any  passengers on board are pilots. That would be a tense time for everybody on the plane. Fortunately a National Guard pilot was able to step in and help out. Talk about being in the right place at the right time.

If you were a passenger and heard that announcement, would you be feeling a bit panicked?  Has anything like this ever happened to you?  I've had healthy pilots every time I've flown, at least as far as I know.