A Rabbi and a Minister were riding in a boat on a lake. When they were a hundred yards from shore, the Rabbi stood up, stepped out of the boat, and walked over the water to the nearest stretch of land.

Astonished, the Minister decided to see if he could duplicate this miraculous feat. He stepped out of the boat and sank. But he managed to swim ashore.

As he started to dry himself off, the Rabbi walked over and said, “If you're a nice guy, next time I'll show you where the rocks are!”