Yesterday at the BJJ class, I sparred against a black belt in judo who is training at our place. We started off in my guard, and tried to go for an armbar where the feet goes over the trapezius muscles, but he got it off. He tried to grip around my hips to pass, but I got an armless triangle choke. After much agony on his part he tapped out. Then, we started in his guard. And what does the guy do? He slaps me on my ear! Pretty hard. Not once, but twice. I asked him afterwards that he avoid it, and explained that he hit my air pretty bad. He was like "okay". Then we start in his guard again, and he slaps my head really hard, to the point I tell him "What the hell, are you hitting me!?!?!?", and he said "No, I'm just hooking your head". But he wasn't trying to break my posture, he just hit me. Two times on the ear, one at the head. I also know another guy at class. He thinks his jitz is better than anyone elses, he has a really big ego. Recently a guy got an armbar on him, and what does the sore loser do? He tries to slam the dude. I told him while the otehr guy was mid air not to slam him. He looks over to me, looks at his opponent, then he drops him down but slams his shoulder into his ribs so the other guy has to tap. What's the point of this? Most guys are cool at the gym, but some people see to do stuff like this. Anyways I'll go back to class later and beat his sore loser ass another day. Have you experienced this before?