Why does Bercow not get this? As one of the very few Canadians who has watched British PMs Question Time on CPAC more than once (are there even 100 of us?) I always found Bercow refreshing to watch. He is more confrontational than any Canadian speaker, but always scrupulously fair. 

He was completely out of bounds with this move. He should step down as speaker and sit as an Independent MP.