Anybody who rides it regularly knows it’s the one with more people on it, and the sign is often lying. And when that happens, the conductor will struggle to close the doors, delaying the train, because people from the train with the sign saying it’s leaving first will rush to get on the one that…
…is actually leaving first. So maybe they should just take down the often-inaccurate sign and put up a static one that says, “The train with more people on it is the one that’s leaving first.”
This opens the possibility to come with a group of pranksters, deliberately go into the wrong train and wait for others to join
You can literally stop a train dead in its tracks by pulling a lever…there is much lower-hanging fruit for train pranks.
But not all would make a great sketch and also are not including anything even remotely illegal
An up and coming street artist