Wednesday’s Nearly Impossible Quiz….Cool StaffCool StaffPublished: May 15, 2013gettyimagesChelseaLaurenShare on FacebookShare on Twitter29 percent of U.S. school districts have outlawed these once common events. What are they?gettyimagesChelseaLaurengettyimagesChelseaLaurenloading...ANSWER: Bake sales. The ban is part of a nationwide effort to battle childhood obesity.