That is one of the best reasons for getting to know your equipment. And for the "reset everything" feature!
We are all going to be bit in that way, sooner or later. In the film days, I was taking family pictures for a church membership directory...you can see where this is going... my camera was PURRING...better than ever, smoother advance, the whole 9 yards. WOW! I thought I finally got it broken in!
WRONG! No film!

I heard about that one for a looooong time!
Then there was when I was backing to get a better angle, and walked off the dock. Accident prone? Noooo, not me!
