[Told to me by a Jewish friend while explaining the three major branches of Judaism. Hope no one is offended]. Note: A "b'rucha" is a Jewish blessing or prayer. A devout Jewish man is shocked when his young son brings home a Christmas tree. Not wanting to upset the boy, while remaining true to his beliefs, he seeks the advice of his Orthodox rabbi. "Rabbi," he asks, "is there a b'rucha to say over a Christmas tree?" "Christmas tree," replies the puzzled rabbi, "what's a Christmas tree?" Saddened, but undaunted, he decides to consult another rabbi, this time a Conservative. "Rabbi," he asks, "is there a b'rucha to say over a Christmas tree?" "Christmas tree," asks the rabbi, "what's a Christmas tree?" Finally, he visits a Reform rabbi, and poses the same question. "Rabbi, is there a b'rucha one can say over a Christmas tree?" "B'rucha," asks the rabbi, "what's a b'rucha?"
(From the "Rest" of RHF)