Have you ever seen hundreds of black-tied revelers enjoying a day at the beach? Or seeing-eye-people leading texters safely through traffic? Or masses of people walking backwards through Times Square? Maybe you’re seeing things, or maybe you’ve happened upon Improve Everywhere. The group carries out pranks, which they call “missions”, in public places. The stated goal of these missions is to cause scenes of “chaos and joy.” Some of the group’s missions use hundreds of performers and are similar to flash mobs, while other missions utilize only a handful of performers. The group’s motto, “We cause Scenes” says it all. Check out other scenes like lightsaber battles or mummy dance parties at Improveeverywhere.com.