Overheard on the 3 train on Ash Wednesday

A female American passenger, presumably in an attempt to be a good "tour guide," was explaining to her male companion with a British accent why some of the other people on the train had crosses marked in ash on their foreheads. As accurately as I can remember, she said, "Catholics get palms on Palm Sunday and hang them upside down in their houses. On Ash Wednesday, which is today, they burn them and use the ashes to make those Xs on their heads. Some other religions do it too but Catholics more so; because of all the idolatry." She then immediately segued into telling him about a club in Manhattan where "everybody sits in old wine barrels."