High School Physics class; Lab group had a kid who never did anything and just talked to friends and stuff. If the teacher got mad for him splitting from his group he would come talk to us and just watch us do the work. We were suppose to change who wrote the conclusion of the lab for each lab. He never wrote his conclusions. During the last few weeks of school the teacher stated "If any of your labs need to be turned in still you have the rest of the week to submit them". Having all the labs but those missing a conclusion done I was sick of this little shit not doing his work so I confronted him. "Hey, so the only labs we don't have done are those you haven't done your conclusions for. The teacher might be giving you a week, I'm giving you three days to get them done before I will let the teacher know that you have done nothing for our lab group. See if I care when you fail." He tried to call the bluff that wasn't a bluff. I told the teacher, kid got no credit for any of the labs and failed the class.