"Infallibility means more than exemption from actual error; it means exemption from the possibility of error," P. J. Toner, Infallibility
And when RC apologists hedge and say the pope is "only infallible in matters of faith and religion," our response is "who cares what a pope believes about the weather in Australia or how badly the Bears played last week?" The only reason to listen to a religious leader is for his opinions on...religion.
So it is the height of arrogance and deceit to believe any man but Christ is "infallible" in anything, but ESPECIALLY in "matters of religion and faith."
This idiotic "infallibility" is what compels Rome to heap error upon error by believing its priestcraft to be an "alter Christus," - "another Christ."
No, the height of arrogance and conceit is the belief that the sacred Calvinist trinity of me, myself, and I are uniquely infallible and sola dufus for judging the meaning and entirety of the Revealed Word and the legitimacy of the dogma of Christians.