Once upon a time, (about 5years ago) a 256M ram "server" holding a wordpress-mu (mu as in multi-user). There was "agile" methodologies, but management did fuck up with the splits, and there were multiple sysadmins for the same systems working "with their team". I was called in by "performance issues", I was working in other "stuff". There was 47.000 mysql tables. There was triplicated "dumps" from cron. There was no "renice" or "ionice" involved in any of them. There was no ntp, the VM time was with a 7 hours time offset. MySQL was with the "distro defaults" :.(

etc ...

In resume: human fails happen. You where smart enough to realize and stop it. That puts you over the average.