I've only had two really BLOW up on me. One was while stringing after it was tillered and shot about 50 times and the second was just a few weeks ago while I was shooting it in just before I was ready to finish it. both were board bows and both were less than ideal, runoffs and such. the one that blew left me holding an arrow and the handle broke both limbs at the same time. Wish I had a video of it or even pictures to show but I just picked up the longest piece and headed back to the shed to make an atlatl.
It is a bit of a rush when it blows with no little "tick" of a warning!
Mark