Maybe it was payback. In a previous job, we had corporate sysadmins who would shut down ports being used on production servers even though there was documentation (that they required), stating that those ports should not be shut down. It happened several times a year for a while - leaving us to scramble trying to figure out who to contact to undo it. Invariably, we would get back a boilerplate response stating that we needed to fill out the paperwork before they could open them.