So i started taking classes at a Gracie Barra. Only been there one week, and I was rolling slaughter line style (one guy rolls 1 min with each person there in succession) and someone got me in a arm triangle from the bottom. I was doing fine, it wasn't tight, but he wasn't letting go, so out of instinct I picked him up to create space, and ended up slamming him inadvertently. Got told to sit out and got scolded. My bad, I apologized, all good. Instructors tell me look its really a team attitude we just dont want animosity etc. The advanced class is totally relaxed and mature, so you need to be like that i fyou want to move up. Fastforward to today: Blue belt asks me to roll at free mat session, Im like ok. Dominate position the whole time on him, switch from guard to half to side to northsouth back to half, work a kimura he pops out of it with his head, and eventually i scramble to my stomach on a failed transition. He takes my back and literally plays grips trying to shoot a choke for 5 minutes. I base up repeatedly but he wont let go of tight ass hooks, and eventually im playing grips on top of him on my back. He gets frustrated that some white belt noob is defending every choke he pulls, so the fucker shoots his whole arm across my face, cross locks, and squeezes. I tap immediately from pain and my mouth is cut up to hell. He's just like oh my bad. Fucker. So hypocritical to tell me that the class is all about rolling and gently working technique then one of your "mature" advanced people pulls a bitch move. FUCK so annoyed. Cliffs: asshole blue belt gets dominated in position and submission work for 10 solid minutes, then can't get a choke grip to save his life on me, decides to be a dick and rear naked my face intentionally.