Of all the challenging landings I’ve greased, of all the long cross-countries I’ve accomplished without getting lost, and of the various in-flight challenges I’ve overcome safely, nothing compares to the satisfaction I get when a cluster of kids rebuilds an engine, then watches it run for the first time. And that’s to say nothing of the look on their faces when they exit the airplane after their first time at the controls.
Source: general aviationHappy accidents and gratifying outcomes