I changed the bash prompt for root on zwinger to something distinctive. It's all very well to say "be careful", but unfortunately our simple mammalian brains aren't designed to detect when one familiar bit of english text is replaced by another. Colours, flashing lights, pretty pictures -- these work better. They allow faster recognition and require less concentration.
Of course I fully agree. No human can really be blamed for this sort of error, our simple mammalian brains are simply not suitable for this type of repetitive work. (Jeronim typed reboot about 100 times that day, on purpose, on other servers.)
The one thing that came to my mind is: why does anyone log into zwinger in the first place? Since it's this horribly frightening SPOF, ought we to not avoid even _looking_ at it funny?
--Jimbo