You know, it would be funny is if what was happening was similar to what I read on The Daily WTF.
Basically, there was an issue where the servers would ALWAYS overheat every night. So the Sys team would get called in and they would stay up alllll night watching it to make sure it was okay. And everynight, when he was there, it would work just fine.
But, if he wasn't there, it would break.
Eventually, they figured out that when the guy left, he would put a clipboard over a vent that would cause the server to overheat. When he came in to watch it, he would take the clipboard down, fixing the issue...
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Everything went down again today :-/