Actually, the Holy Canons call for...
Ahh yes, the Holy Canons! What do they call for?
If anyone insults an emperor or king, or any other ruler, contrary to what is right and just, let him pay the penalty. Accordingly, if he is a clergyman, let him be deposed; but if he is a layman, let him be excommunicated. - Apostolic Canons, 84
"It is not meet for a layman to reprove a priest, or to strike him, or to rail against him, or slander him, or to rebuke him to his face, even if what he [the layman] says is true. If he should dare to do this, let the layman be accursed, and let him be cast out of the Church, for he is cut off from the Holy Trinity and sent to the place of Judas. For it is written, 'Thou shalt not speak evil of the ruler of thy people.'" - Quoted by Matushka Anna Lardas on this site before; she references: Canon 121 of the Nomokanon (Abridged Collection of the Holy Canons of the Holy Apostles, St. Basil and the Holy Councils)