This may seem innocent and to a certain extent it is. However, the consequences of this prank truly are hilarious and will have the whole class in uproar. As the name would suggest, this prank only involves a left handed pencil, yes there is such a thing, and some sneak. Firstly, you need to find someone who is not left handed- if you make this mistake then the prank will fail miserably. Once you have found a right-handed person, swap their current pencil for a left handed pencil- your victim could be a friend or a teacher if you want extra laughs. Then, simply step back and watch them struggle to do the most basic of things.