I don't actually get to blow them up, I'm their resident machinist.
The engine test cell operators are usually bored to death, and some test cells are automated to run on their own, shutting down automatically when something goes amiss.
If I can find it next week, I'll add a pic thats shows a fully loaded diesel so hot all the exhaust, turbo & ductwork is glowing neon purple, its very cool!
AM