VIDEOS:
Cookie Zombie Prank
My Little Pony: Friendship Is Magic - Ep 132 (28 Pranks Later): Rainbow Dash pulls a prank around Ponyville involving cookies that turns the eater's mouth rainbow colored. However, it seems an unintended side effect was turning the victim into a cookie craving zombie. When it seems only the CMC, Rarity, Applejack and her are left, they try to barricade themselves in an old barn. But things only go from bad to worse... or so it would seem.
Example of:
Massive Multiplayer Scam