Whether you're a scary movie buff or have just seen a few of the classics, you know one thing: the signs all point to disaster. Horror movie signs are made to be ominous and foreboding, to clue the audience in on bad things to come. The most memorable horror movie signs beg the characters to stop, think and turn back before they reach impending danger. But though the signs in movies indicate looming trouble or foreshadow events to come, the uninformed characters continue treading right into the danger zone, making for the most thrilling horror movie sequences. Here are six of the most unforgettable signs from horror movies (warning: some movie spoilers included).