Religion for Non-Believers: It's a Jewish Thing

There is an old joke about the Jewish atheist who is excited to meet the Great Heretic of Prague. He arrives at the great man's house on a Friday night, and is immediately told to shush while the Heretic lights Shabbat candles. Then they sit down for the Shabbat meal, during which the Heretic says the motzi over the bread and the kiddush over the wine.