I seem to recall[1] that at one point, that emacs had a "final score" mode that would tell you how many typos / corrections you'd made during an editing session

I seem to recall[1] that at one point, that emacs had a "final score" mode that would tell you how many typos / corrections you'd made during an editing session... Not as destructive as an 'rm -rf', but it would provide incentive to minimize mistakes. [1] Or I may not recall; it was a strange time. It might have been a suggestion, along the lines of designing a grep stick for physical libraries.