What are you trying to do to me, Macbook?!

So my beloved Macbook went on a massive go-slow. A rare occurrence but non-the-less I restarted. Half way through the restart it crashed... then it somehow crashed during the crash. Then it booted fine, quietly apoligised for Mac OSX crashing and continued to go about business as usual.

Whut?!

Half way through all this nonsense I got this screen...



Which is apparently like a windows blue screen of death. According to Wikipedia. Also people who've been asking around on forums about this a) were doing something unusual (using new hardware/software) and b) couldn't revive it.

Mine's now fine after a reboot. Plus all it was running when it happened was Chrome, Photoshop and Word. Just the usual.

I'm SO confused.

My Macbook is undead? Should I be worried that my awfully expensive laptop just seemed to have a near-death experiance?