Image sources:

• – Parkour:
  http://listsoplenty.com/blog/wp-content/uploads/2010/05/parkour1.jpg
• – Flash Mobs:
  http://i.telegraph.co.uk/telegraph/multimedia/archive/01291/flashmob1_1291613c.jpg
• – Filmed Pranks:
  http://www.zuwairiaiman.com/blog/wp-content/uploads/2010/03/office-prank-16-toilet-seat.jpg
• – Outdoor Movies:
  http://www.filemagazine.com/thecollection/archives/images/_DSC0129.jpg
• – Pub Crawling:
  http://www.meetnowlive.com/blog/wp-content/uploads/2009/06/pub_crawl.jpg
• – Tomato Fights :
  http://www.funis2cool.com/wp-content/uploads/2008/09/tomato-festival-11.jpg
• – Running of the Bulls:
  http://cellar.org/2004/baitedbull.jpg