Halloween traditions and laws vary around the world. In Hollywood, using silly string on Halloween carries a $1,000 fine due to clean-up costs. Alabama bans impersonating a priest on Halloween. Many animal shelters won't adopt out black cats around Halloween for fear of mistreatment. America's top Halloween candies are Snickers, Reese's, Kit Kat, and M&M's, with over 90 million pounds sold as chocolate. Ireland is believed to be the origin of Halloween traditions that later influenced the modern holiday.