I did that on my laptop. I was a client's site and I was deleting files off a floppy. This was Win95 at the command window and I typed del *.* instead of del A:*.* and deleted everything in my root directory. Guess what! Win 95 does not have an undelete. (I love progress!) I actually went out to computer store to see if Norton Utilities would help me. It turns out it would not. I ending copying the root directory from another computer to me back in business. Backups??

>I did the same thing almost in DOS days. Went to delete files on a client's floppy disk and typed DEL *.* instead of DEL a:*.*. Luckily their backups were up to date (since they were my responsibility). I never told the client why his 'installed by special appointment by the program owners' DOS software was no longer running.
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>But it sure did make me a believer in accurate, tested and double-tested backups!
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>In those days a complete backup of everything on their network took about 10 floppy disks. Amazing - last night's incremental backup was 1.5 GB.
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>>Back a few years when DOS was king and I was younger, I was at a client site and meant to delete all of the *.bak files in their main application's directory. Someone asked me a question as I was typing, and damn if I didn't type DEL *.* < ENTER >.
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>>Not pretty, but pretty dumb...