So, the new Pope (work with me here, it's a joke) is flying to the Vatican when his plane crashes in an isolated forest. Fortunately, he and his retinue are all right, but they have to hike through the woods in order to reach rescue.
Not long after the crash, the Pope is overcome with a sudden bout of intestinal distress and goes off to find a secluded place to relieve himself. Unfortunately for him, no sooner has he "dropped trou" when a massive bear, thinking it has found dinner, rears up on its hind legs and roars. Literally caught with his pants down, the Pope does the only thing he can think of: he holds up his hands in the sign of blessing and says "Pax vobiscum!" (Peace be with you.)
To his astonishment, the bear makes the sign of the Cross with its paw and wanders off. The Pope, quite naturally, pulls up his pants and rejoins his group, where he tells them of the miracle he just witnessed.
As they resume their hike, one of the cardinals quips "Well, we know the bear is Catholic, but we may never find out if the Pope shits in the woods."