You're banned because ANYONE WHO FEELS THAT IF SO MANY MORE STUDENTS WHOM WE HAVEN’T ACTUALLY ADMITTED ARE SITTING IN ON THE COURSE THAN ONES WE HAVE THAT THE ROOM HAD TO BE CHANGED, THEN PROBABLY AUDITORS WILL HAVE TO BE EXCLUDED, IS LIKELY TO AGREE THAT THE CURRICULUM NEEDS REVISION.
You're banned for banning him because you think you can but you really can't and he thought you couldn't so he banned you and you thought you could so you banned him for it, but, in reality, you cannot, so, therefore, you are banned.