Honest and classy apology. Nice, Google.
For me it's always that same stupid routine operation that I've done 1000x before, so I turn my brain off while I do it. Then there's that moment of shocking clarity where you think "I didn't just... did I?" followed by the mad scramble to check and then the sinking realization that "yes, yes I did." shudder
The twitter fiasco of first removing a feature because it was "confusing" [according to them] and then backtracking and saying that it was removed because of engineering problems was interesting to watch.