Castle doctrine possession of land to use reasonable force to regain possession of that land. The term "make my day law" came to be used in the United States in 1985 when Colorado passed a law that shielded people from any criminal or civil liability for using force against a home invader, including deadly force. (The law's nickname is a reference to the line "Go ahead, make my day" (meaning 'do something so I have an excuse to kill you') uttered by actor Clint Eastwood's character "Dirty Harry" Callahan in the 1983 police film "Sudden Impact".) Each jurisdiction incorporates the castle doctrine
Go ahead, make my day robbery in progress. He kills all but one of the robbers in a shootout. However, the surviving robber grabs the fleeing waitress Loretta (Mara Corday), holds his gun to her head, and threatens to shoot. Instead of backing off, Harry points his .44 Magnum revolver into the man's face and dares him to shoot, saying with clenched teeth and in his characteristic rough grumble, ""Go ahead, make my day,"" meaning that if the robber attempts to harm Loretta in any way, Harry would be happy to dispatch the robber. At the end of the film, Harry, again, says ""Come on,