Metal baking sheet at an elementary school yields apparent likeness on Ash Wednesday They kneeled. They cried. They asked for healing. Before them, on an altar of roses and prayer candles, was a metal baking sheet, stained with what hundreds of Houston Catholics now believe is an image of the Virgin Mary. Guadalupe Rodriguez, a Pugh Elementary School cafeteria worker, discovered the possible miracle on Ash Wednesday, while scrubbing away the last crumbs from the pizza lunch. By Friday, a steady stream of people were filing through the southeast Houston front yard of Sylvia Calderon, a PTA member who took...