This summer Chris Pratt won something called the MTV Generation Award at the MTV Movie Awards. His acceptance speechincluded perhaps the best breakdown of the courtesy flush ever:"If you have to poop at a party but you're embarrassed because you're gonna stink up the bathroom, just do what I do and lock the door, sit down, get all the pee out first, OK? And then, once all the pee is done, poop, flush, boom! You minimize the amount of time that the poop is touching the air, because if you poop first, it takes you longer to pee and then you're peeing on top, then it's stirring up. Just trust me, it's science."
The courtesy flush was introduced into pop culture in Austin Powers, when Tom Arnold mistook the sounds of Austin owning one of Dr. Evil's henchman in his stall for a massive dump. The scene itself is so influential it clocked in at #6 in our Most Epic Poop Scenes in Movie History.