My roommate comes from Italian heritage, and he wears a cross necklace everyday. The cross has an added horn on top of it. He got it from his Grandma, who told him that the horn wards off the “evil eye.” His grandma believes that if you wear the cross with the horn, certain people can’t look at you and curse you. This could’ve come from a belief that religion will save you from certain people. A small tradition like this probably added to the comfort of italians who were scared of different people who weren’t native to that area.