@thegibson
Froze backups across my entire section, because our workstations were connected as a Beowulf cluster and nobody told me that saving data continually would keep the disks active preventing backup. Only found out because I had no cubical so was in the main room when the very frazzled admin came in trying to solve it.
@thegibson
My biggest fail is that I have so few fails because despite the passage of time I have relatively little experience.