[T.B. Yoits]

"He's not an ambi-turner."

In reference to someone so incapable that they can't turn in both directions.

[T.B. Yoits]

(Like a)"...freak gasoline fight accident"

When they're going to screw up so royally that it could have massive negative consequences and they're so clueless that they think it's going to be a positive experience.