Courtesy of Wikipedia: Trick-or-treating is a customary practice for children on Halloween in many countries. Children in costumes travel from house to house in order to ask for treats such as candy (or, in some cultures, money) with the phrase "Trick or treat!" The "trick" is a (usually idle) threat to perform mischief on the homeowners or their property if no treat is given to them. In North America, trick-or-treating has been a customary Halloween tradition since the late 1920s. It typically happens between 5:30pm and 9:30pm on October 31, although some municipalities choose other dates. Homeowners wishing to participate in it sometimes decorate their private entrances with artificial spider webs, plastic skeletons and jack-o-lanterns. Some rather reluctant homeowners would simply leave the candy in bowls on the porch, others might be more participate and would even ask an effort from the children in order to provide them with candy. In more recent years, however, the practice has spread to almost any house within a neighborhood being visited by children, including senior residences and condominiums.
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