A "course of conduct" is "two or more acts that serve no legitimate purpose including, but not limited to, acts in which the stalker directly, indirectly, or through a third party follows, monitors, observes, surveils, threatens, or communicates to a person by any action, method, or device." Section 455.010(15)(b). Critically, "it is the entire course of conduct—not each individual act in isolation—that must reasonably alarm the petitioner." B.L.M. v. D.L.O. , 643 S.W.3d 910, 916 (Mo. App. E.D. 2022). To "alarm" someone means to "cause fear of danger of physical harm."