Two crashes in 25 years is an excellent figure, IMHO.
"But then IT is never science but a different form of magic. ": glad to see that I'm not the only one to think that! ;-)
One thing I learnt early in my time in IT was: "There are fundamental technical reasons why it is necessary to sacrifice a young goat to your SCSI chain now and then."
Ok, these old reviews should be restored now. Forgot about this ancient DB schema ... lol