Hey everyone, here's another bonus Friday JKP prank! If you wish to see more kids pranking adults, visit Just Kidding Pranks: http://www.youtube.com/JustKiddingPranks Just like the Head in the toilet and the Head of the Spanish Inquisition, no one expects the Head in the backpack! In this gag, we get a lot of what I like to call the "shaking forearms startle", my favorite scare move. A presentation of the official Just For Laughs Gags YouTube channel. Home of the funniest, greatest, most amazing, most hilarious, win filled, comedy galore, hidden camera pranks in the world!