What's the best prank you've pulled off?

-I once scared the heck out of my dad with a butcher knife and some red food dye; pretended I had cut myself really bad.I once scared the heck out of my dad with a butcher knife and some red food dye; pretended I had cut myself really bad.Haha we once made this friend believe that he was down for certain events and even on his holiday, as a part of regimental duty. Even the bosses collaborated to trick him before we ended the whole prank by bringing in his birthday cake. :D
Ahh , So Far . At School , We Put Ice On Our Teacher's Chair & ' She Didn't Know It Was There . When She Got Up , There Was A Big Wet Spot On Her Butt . It Was Funny As Fxck . :D
Framing Osama Bin Laden for 9/11.
Wasn't A Prank , But Kyed The Principles Car