A person sent me a pointer to the happenings at the Everquest data center
on Saturday. Yet another person learns the joy of electronic door systems 
http://everquest.station.sony.com/network_fs.html
Another commonly overlooked system is a building's paging system. They are
often handled by different groups, and aren't included in the systems backup
plan. Fortuantely most people figure out workarounds quickly.
Yep, I found out the hard way too.