dyno day mayhem

Has anyone seen this? Lucky nobody was hurt. Last year a friend of mine had his 6.7 cummins blow a hole in the block on the Dyno too. I guess this is what happens when you take a motor way past design limits...
Cummins Blows Apart on the Dyno - Epic Explosion:

[ame]http://youtu.be/emqgrZpvCXA[/ame]