Attractive nuisance doctrine
Mr. McGraw keeps a giant smiling metal frog at the top of a tree. This is just one of several metal animals he keeps as decoration on his property. The children at the neighboring elementary school walk home in front of Mr. McGraw's property every day. One day, Joey dares Jimmy to climb up the tree and touch the frog. Jimmy climbs the tree, loses his grip, and falls onto a giant pink elephant breaking his arm. Under a state that follows this doctrine Mr. McGraw could be held liable in tort.