This is again /offtopic but teaches a lesson;

Just yesterday morning I spent couple of hours restoring a jenkins sever which a co-worker accidentally botched while trying to make a bit more room on a filled up disk partition.

He was deleting some old log files late at night, and accidentally wrote '/*' instead of '*/' ...

And the thing which REALLY was the bit which made it hurt was that he was doing it as root... Some of the CI modules used by jenkins were way back sometime installed as root, which btw is in this case completely unnecessary and that caused the logfiles to be owned by root... oh well