The crew from Improv Everywhere has pulled off some amusing stunts over the last couple of years -- from a Best Buy store full of people dressed like Best Buy salesmen to subways full of people with no pants to humans walking invisible dogs.
In their latest, some friends go to a Knicks game at Madison Square Garden. One of them, Rob, leaves to go to the concession stand, but when he comes back, he can't remember where they were sitting, so he wanders around looking for them. When his friends spot him, they shout out to him, but he doesn't hear them. Eventually, people nearby start shouting Rob's name to no avail as he remains clueless. This keeps building as more and more Knicks fans become concerned more with Rob's absence than with the game -- until whole sections of the arena are involved in trying to get him back to where he belongs...