Te kallisti 
From the abstract…
τῇ καλλίστῃ (Greek for: ‘te kallisti’ — to the Fairest) is an approach—at least an effort—at mitigating the eye of the semi-vain, or overly self-conscious.
Employing simple interactive Arduino components, this work invites the interactor to try and catch a glimpse of their reflection in the mirror set atop an acrylic case. As they approach the device, a range sensor sets off a reaction that causes the mirror to turn away from the participant. Try as they might, the interactor is continually denied the opportunity to view likeness, and thus, the narcissistic sin is averted.