a scale of one to OMG we're all gonna die

A variant of a scale of one to dead used to judge situations where a minor mistake has occurred that could nevertheless cause the deaths of all involved. Commonly used in space stations, submarines, nuclear power stations and anywhere else that requires a rapid response to minor errors if everyone isn't going to die.

Nuclear Physicist: Fortunately, we managed to contain the situation before it could deteriorate further.
Reporter: Just how bad is it, on a scale of one to OMG we're all gonna die?
Nuclear Physicist: I doubt it's more than a five. Can we finish this conversation in the bunker?

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