Stumbled upon a bug in IOS 12.2(33)SXI7 today in regards to a 6509 VSS pair. Apparently, issuing the 'switchport' command on an interface that is both admin'd down and has no media connected to it can cause the switch to get stuck on stupid and give up any sanity it currently has. End result, 45 minute outage and funny looks from upper management. Remind me not to do this again any time soon.
For anyone curious enough, bug id is CSCtr10155. -- "There are two American flags flying on the property I reside on. Anyone who tries to take them down will be rendered inoperative." -Lindy