Firmware fail!

An interesting thing happened on the way to EFI...

Ever see anything like this in your travels? I sure haven't. I'm holding down the option key to bring up my boot options and then... something. went. wrong. Only, I have no idea what. Somehow, as i used my cursors and mouse to try to select the proper boot device, it somehow interpreted my actions as "throw away that boot device!"

Fortunately, the dang thing froze, so I was able to grab a picture.

If you've seen anything like this before, lemme know.