Also, what you could or may have done... not likely, but is possible to happen..
Would you have used your hand to prop yourself on that dust shield behind the rotor without thinking about it throughout this process? That dust guard is a piece of fuck... I accidentally bent one into mine when I was working on my clutch.. just check and make sure there's no contact on that thing....
I'm not positive, but i'm pretty sure it's safe to just take those ugly ass dust shields off, if you want.
Maybe someone could back me up in the thought that those shields don't serve much a purpose?