Assess the arousal intensity of the sentence "The long blade of the yucca had a sharp tip, but the only weapons allowed according to Humpty Dumpty Nursery rules of engagement were smelly thistles or cocklebur stems covered with spiked yellow stickers." based on the mood of the author. Offer a numerical rating between 0 and 1, with 1 representing highly energetic and 0 representing highly calm.