Sir Edmund dismisses the plan, as Baldrick will have to hold the monarch's head in front of the crowd and proclaim "This is the head of a traitor", to which Sir Edmund predicts the response "No, it's not!
Sir Edmund disapproves of the plan, stating that Baldrick must display the monarch's head to the public and declare "This is the head of a traitor".  Sir Edmund anticipates the crowd's response: "No, it's not!"