Sometimes, us system administrators, are blamed for loss of information. Such loss could render a system unusable, or just lack of information that is required to be restored from a backup. Recently, my team an I were blamed for at least two coincidences like that. In one of which, the user was the one to delete the information, and in the second, we still don't know what went wrong, but we're sure we had nothing to do with that. On both cases, we restored everything back to normal, at the price of few work days.
Such mistakes merely justifies the fact that users put their blame on us, since these sysadmins really are stupid. It's a shame they bring a bad name for all of us.