i don't know if this has ever actually been done before, but i've heard of it, and loved it. basically, you take two pigs. paint a big "1" on the first pig, and a big "3" on the second. grease em up really good, do whatever you want. then, you release them in the school. the school finds 1 and 3 pretty quickly (or so i would assume). but, they spend a considerable amount of time looking for #2.
probably wouldn't work anymore, cause people are smarter, but hey, it's still a great prank.
my school isn't really known for pranks though. that might change next year when my grade is seniors though....
