@danderson I deployed an approved change one Friday night in 2008 to every National Australia Bank workstation.
It removed the core banking software. That was ... not the intent.
I spent 12 hours pushing the new software out to every site (~2,000), and writing a script to force reboot every workstation (~30k+). Before 08:00. With the major incident management line going the entire time. (They were great.)
I feel for whomever did this today. Shit happens.