A rabbi, a minister, and a catholic priest are sitting on a boat,
fishing.
The minister's line gets caught on a rock, so he gets out of the
boat, walks out onto the water, unhooks it and gets back into the
boat.
A little later, the rabbi's line gets caught on the same rock.
He gets out of the boat, walks out onto the water and unhooks the
line.
After even longer, the priest's line gets caught on the
very same rock. The priest gets out of the boat, starts walking
on the water, then falls in.
The rabbi looks at the minister and says, "think we should tell
him where the rocks are?"