What is the origin of the idiom "bent out of shape" and when to use it?

The origin of the phrase "bent out of shape" is uncertain, but it is believed to have originated in the mid-20th century. The phrase uses the metaphor of physical distortion or contortion to describe someone's emotional state. It can be used in various scenarios, such as when someone gets upset over a small mistake or inconvenience, or when they become excessively angry or annoyed over a trivial matter.