I've had mine let go.. I think its let go on every one who works on their car some time or another.
I was in a rush to take the car for a spin with the new turbo on it.
Completely forgot to do up the ic pipe to cross over hose clamp. Started to accelerate lightly, it may have hit 5-7psi or so and BANG!!! nothing, no acceleration. I dipped the clutch the car lumped over for a sec and died.
Tried to start the car; it would start then stall, wouldn't even idle.
Popped the bonnet and saw the ic pipe sitting half in the rubber half out.