One of my friends had a deaf kid in his class in elementary school, and apparently nobody told him that farts make noise. My friend said he would rip super loud farts in the middle of class.
Also in middle school, a buddy farted in the train on the way home. Lots of stink, but it got really stinky and it wouldn't stop to stink. That's when i realized by the look on his face that he had pooped himself.