Blocker Train

Blocker Train: The fastest, longest "fuck you" on wheels.

When a spacetime-aided train intercepts someone's path when they're in a hurry, they got stopped by a Blocker Train. This almost exclusively happens when at least one person is in a rush and need a Plot Screw to slow them down, so God sends in a train to put a stopper in their way. If this is happening during a Chase Scene, it's more likely the chased is the one put behind the train than the chaser to intensify the sense of danger. If someone needs to be Unlate, then a Blocker Train will only infuriate them and make them more likely to be late for whatever they're rushing to.