Ha, this is actually pretty funny in retrospect. There I was, giving a talk on all of this great stuff we do with our data, having no idea that a good portion of that data had just vanished. The universe has many potent mechanisms for keeping us humble.
Something like this happened to me several years back... I accidentally deleted a table full of emails out of a spam appliance when I thought I was in my development window. Thanking my stars it happened at 5pm on a Friday afternoon, took me the entire weekend to reconstruct the database. Ever since then I set my production terminal backgrounds to bright red so I can't miss what window I'm in :)
