WoW Mists of Pandaria Beta: Burn the Scroll
An early quest in the Pandaren starting zone requires you to burn a scroll that appears on this object. Early in the beta, you had to be standing back in the doorway to be able to click on the scroll to complete the quest. Depending on the time of day, there could be dozens or hundreds of Pandaren crowding around it trying to get close enough to click it, not knowing that further back is better.
Screenshot of World of Warcraft Beta game client by Wally Bahny for TechRepublic