تعریف و معنای "[jump] the (tracks|rails)"

What is the origin of the idiom "jump off the tracks" and when to use it?

The idiom "jump off the tracks" originated from the literal sense of a train derailing, symbolizing an unexpected and often chaotic deviation. Metaphorically, it conveys a similar sense of unexpected shift or disruption in plans, actions, or thoughts. It's often used to highlight a situation where something unexpectedly deviates from the intended path. Additionally, it can be applied to individuals who suddenly shift from one activity to another.