As Ops manager for a mid Qld Aero club, and always looking for ways to lower prices of contracted out flying traing, I had a thing about doing pre shutdown magneto checks, ( seems like it was to even out the Hobbs meter) and to the students disadvantage.
I was quiet vocal about it.
Years later in the "Never Never", I landed my trusty steed and about 3 days later when I wanted to go home, I found one mag dead. Apparantly failed in flight and I didn't know anything about it until restart.
Cost me heaps getting a LAME to the scene to get things right and thereafter thought there are always two sides to a story.
If I had done a simple pre shutdown mag check, the situation may not have been as it was and,,,,,, quiet frankly, I "did contemplate taking off on one and compromise safety.
I was 4000ft up in the hills and on a short strip.
Glad that sanity prevailed.