In the run up to WW2, the Pope and Stalin held a secret meeting on Lake Galilee to discuss the threat of fascism looming over the world
They sat with their representatives in a small boat in the middle of the lake and debated furiously until the Pope decided he wanted a pee, so he climbed out of the boat, walked across the surface of the lake and relieved himself under the nearest tree.
Determined not to be outdone, shortly afterwards Stalin followed suit, clambered over the side of the boat and sank like a stone and was quickly hauled to safety.
A couple of hours later the Pope was taken short again and repeats his performance - shortly after, Stalin, tries to emulate his performance and has to be hauled out again.
The third time this happened the Pope says, "for ***** sake, show him where the stepping stones are before he drowns himself"
Jim Carroll