The folks at Improv Everywhere are preparing to celebrate their tenth anniversary. If you are not familiar with this group, they are a group of people whose sole purpose is to create a prank that causes scenes and chaos in public places and they are hilarious. They have accomplished over 100 missions and have used thousands of people over the years to act as undercover agents. To commemorate their 10th anniversary, they have remastered some of their best pranks. Below s a video of one of their best, where they sent 80 people into a Best Buy store dressed in blue polos and khakis. They looked just like the actual employees and you can only imagine the confusion it created. See for yourself.