It’s never safe to go back to school

If you prefer your holiday humor wrapped in Catholic memories and dispensed by a nun in full habit, then Sister’s Christmas Catechism: The Mystery of the Magi’s Gold may be just the ticket. This variation on the venerable Late Nite Catechism series features a slight change in the typical parochial humor as Sister (Nonie Newton-Breen) takes the audience through an off-kilter version of the nativity story. Don’t expect a Vatican-approved Christmas pageant, but even with audience participation, it won’t get too off-color, either. Sister will see to that.

Sister’s Christmas Catechism: The Mystery of the Magi’s Gold, 8 p.m. Tuesday and Wednesday, 2 and 8 p.m. Thursday; 8 p.m. Friday; 2 and 8 p.m. Saturday; 2 and 7:30 p.m. Sunday; $32-$42. Cosmopolitan Cabaret, 1000 K Street; (916) 557-1999; www.cosmopolitancabaret.com. Through January 3.