account of guising in the 1950s in Ardrossan, North Ayrshire, records a child receiving 12 shillings and sixpence, having knocked on doors throughout the neighbourhood and performed. Growing up in Derry, Northern Ireland in the 1960s, The Guardian journalist Michael Bradley recalls children asking, “Any nuts or apples?”. In Scotland and Ireland, the children are only supposed to receive treats if they perform a party trick for the households they go to. This normally takes the form of singing a song or reciting a joke or a funny poem which the child has memorised before setting out. While going from door to door in disguise has remained popular among Scots and Irish at Halloween, the North American saying "trick-or-treat" has become common in the 2000s. Spread to North America The earliest known occurrence of the practice of guising at Halloween in North America is from 1911, when a newspaper in Kingston, Ontario, Canada reported on children going "guising" around the neighborhood. American historian and author Ruth Edna Kelley of Massachusetts wrote the first book length history of the holiday in the US; The Book of Hallowe'en (1919), and references souling in the chapter "Hallowe'en in America"; "The taste in Hallowe'en festivities now is to study old traditions, and hold a Scotch party, using Burn's poem Hallowe'en as a guide; or to go a-souling as the English used. In short, no custom that was once honored at Hallowe'en is out of fashion now." Kelley lived in Lynn, Massachusetts, a town with 4,500 Irish immigrants, 1,900 English immigrants, and 700 Scottish immigrants in 1920. In her book, Kelley touches on customs that arrived from across the Atlantic; "Americans have fostered them, and are making this an occasion something like what it must have been in its best days overseas. All Hallowe'en customs in the United States are borrowed directly or adapted from those of other countries". While the first reference to "guising" in North America occurs in 1911, another reference to ritual begging on Halloween appears, place unknown, in 1915, with a third reference in Chicago in 1920. The emergence of "Trick or treat!" The interjection "Trick or treat!" — a request for sweets or candy, originally and sometimes still with the implication that anyone who is asked and who does not provide sweets or other treats will be subjected to a prank or practical joke — seems to have arisen in