True story - My Jewish brother married a Catholic wife. They've got two daughters, with a son on the way. The wife has been taking the daughters to Church every Sunday. One Sunday, during high mass, the older daughter (age 5) whispers in her mother's ear, "Can we go home now?" "Not yet", replies her mother, "the mass is only half over." "We can go now, Mommy. I'm half-Jewish."
(From the "Rest" of RHF)