Disgust
Disgust is humanity's oldest protocol, where primal instinct and social judgment conspire to quarantine their target. It triggers at will, magnifying minor flaws in others while sanctimoniously preserving one's own purity. A universal shield that renders the unseen unseen and banishes unwanted scents to the abyss of oblivion. In the wake of its instantaneous rejection, a sardonic laugh inevitably echoes within the chest.