Yeah, I thought it will be logical that a huge minotaur will be accommodated in a separate cell, and besides I wanted to break a wall ! :)
But please notice, Shorus didn't break the bars in his cell, those are made of steel and are too strong for him to break, he broke the wall between the cells and entered the adjacent cell where the majority of other players are imprisoned(leaving a huge hole in the wall), introducing himself and ready to run into the hallway through the already open door and backup the green eyed elf.