You want to laugh? Check out the farting gym instructor! Similar Pranks: You can´t get enough of shampoo pranks? Here is shampoo prank part 8 for you! How would you react when some wins the lottery with your money? Do you like Pranks? resume / watch again Follow us on Facebook Follow us on Twitter Posted on 03/07/2016 - uploaded by martinho – produced by fouseyTUBE 15.773.006 In this prank Yousef pretends to be a gym instructor who happens to have a lot of gas.