Two priests would go fishing every Monday to unwind from the weekend. One day their bishop asked if he could tag along for the day. The priests decided it would be okay. They met at the lake on Monday morning, loaded the boat and headed out to their favorite spot. As the day went on each priest caught a keeper or two but the bishop wasn't having any luck. One of the priests announced he needed to go the bathroom, stood up, stepped out of the boat and walked above the water to the shore. The bishop was shocked and then amazed by the event.
When the first priest returned to the boat, the other priest decided it was a good idea and he too stood, stepped out of the boat and walked across the water to the shore. The bishop was at a loss for words. After a time the second priest returned and the bishop, not wanting to shown up by his subordinates, announced he also needed the facilities. He stood, stepped out of the boat and immediately fell in lake and had to swim to the shoreline.
The priests looked at each other and said "I guess we should have told him about the rocks."