in Britain and Ireland in the form of souling and guising, the use of the term "trick or treat" at the doors of homeowners was not common until the 1980s, with its popularisation in part through the release of the film E.T. Guising requires those going door-to-door to perform a song or poem without any jocular threat, and according to one BBC journalist, in the 1980s, "trick or treat" was still often viewed as an exotic and not particularly welcome import, with the BBC referring to it as "the Japanese knotweed of festivals" and "making demands with menaces". In Ireland before the phrase "trick or treat" became common in the 2000s, children would say "Help the Halloween Party". Very often, the phrase "trick or treat" is simply said and the revellers are given sweets, with the choice of a trick or a treat having been discarded. Etiquette Trick-or-treating typically begins at dusk on October 31. Some municipalities choose other dates. Homeowners wishing to participate sometimes decorate their homes with artificial spider webs, plastic skeletons and jack-o-lanterns. Conversely, those who do not wish to participate may turn off outside lights for the evening or lock relevant gates and fences to keep people from coming onto their property. In most areas where trick-or-treating is practiced, it is considered an activity for children. Some jurisdictions in the United States forbid the activity for anyone over the age of 12. Dressing up is common at all ages; adults will often dress up to accompany their children, and young adults may dress up to go out and ask for gifts for a charity. Local variants U.S. and Canada Children of the St. Louis, Missouri, area are expected to perform a joke, usually a simple Halloween-themed pun or riddle, before receiving any candy; this "trick" earns the "treat". Children in Des Moines, Iowa also tell jokes or otherwise perform before receiving their treat. In some parts of Canada, children sometimes say "Halloween apples" instead of "trick or treat". This probably originated when the toffee apple was a popular type of candy. Apple-giving in much of Canada, however, has been taboo since the 1960s when stories (of almost certainly questionable authenticity) appeared of razors hidden inside Halloween apples; parents began to check over their children's fruit for safety before allowing them to eat it. In Quebec, children also go door to door on Halloween. However, in French-speaking