Across the literary spectrum, "rash" has been employed as a versatile adjective describing impulsive, impetuous, and sometimes foolhardy actions. In many works, it denotes the youthful and brash impetuosity that authors warn against—as in the admonitions of Pope and Dickens ([1], [2], [3])—while also characterizing bold, reckless military or political decisions, evident in historical narratives and epic poetry ([4], [5], [6]). At times the term extends beyond human behavior to capture natural phenomena and animalistic impulses, like Melville’s simile of a "rash, restive horse" ([7]). Moreover, "rash" is often juxtaposed with prudence and careful deliberation, serving as a cautionary marker in advice and moral meditation across genres, from Emerson’s reflective essays ([8], [9]) to the intimate domestic concerns voiced in novels by Alcott and Forster ([10], [11], [12]). This layered usage underscores the enduring literary preoccupation with the tension between spontaneous action and measured restraint.