premise: The phrase to say while Trick-or-Treating has only ever been, "Give me your money".
hypothesis: Trick-or-treating . Children in costumes travel from house to house asking for treats such as candy ( or , in some cultures , money ) with the phrase `` Trick or treat '' . While going house-to-house in costume has remained popular among Scots and Irish , the custom of saying `` trick or treat '' has only recently become common . ( `` can you give me my little skull ? '' )