That's are pretty serious message, how much are you willing wager? If you are working against Q you are helping the enemy who could be indicted as traitors. If you don't believe in Q your best bet is to just move along.
The pope can claim a teaching to be infallible but it can't contradict an opposing teaching that has already been declared infallible. Otherwise the original teaching was not infallible to begin with and the whole concept of infallibility is bunk.