Converting a Bear
A Catholic Priest, a Baptist Preacher, and a Rabbi all served as chaplains to the students of Northern Michigan University in Marquette. They’d get together two or three times a week for coffee and to talk shop.
One day, someone made the comment that preaching to people isn't really all that hard — a real challenge would be to preach to a bear. One thing led to another, and they decided to do an experiment.
They’d all go out into the woods, find a bear, preach to it, and attempt to convert it.