Improv Everywhere was back recently causing a commotion (or more appropriately: a standstill) at Grand Central. For this prank the troupe had 207 "agents" in place that all froze on cue for five minutes. (We'd love to see this go down in Times Square.) The below footage shows the latest stunt:

The onlookers prove to be equally entertaining, and didn't know what to think (protest? acting class?). One employee trying to move his cart through the terminal has to radio in for help: "I can't move my cart, there's hundreds of people frozen everywhere. This is wild. I need some help." Improv Everywhere: making the commute more interesting.