Mr.... lets leave his name anonymous

Well it was quite interesting today in Social Studies, when he really messed with our minds. My friends and I were talking and we kept yelling the line " SHUT YO MOUTH!!!!" at each other. The substitue(anonymous) found it quite annoying and desracting to the others in the class. He told us to imagine that we were all inside cubicles and we could not talk. I dont know about the rest of them but I found it quite confusing how he thought that would actually force us to refrain from further outburts. I dont even comprehend his thopught about the matter in anyway whatsoever. Anyway, another thing he was doing during our class, was that he was telling me and my friends how shut yo mouth was a better term than shut up. He did this by comparing a punch and a slap. I asked " so you are promoting us to beat each other up?" But he never answered. I still wonder if he was. No wonder so many teachers have put him on the list that states he is not aloud to sub for their class anymore.