Hmm, a load balancing bug which eats several production services for lunch and has a bunch of second-order effects. I wonder if it involves running a script and pushing the output without looking at a "diff" view to see what changed, and they managed to push a config which sent all of the world's traffic to one location.

It seems like just the other day when I was thinking about this very thing. http://rachelbythebay.com/w/2012/11/19/lb/