The impulse to yawn comes over us with great force. Suddenly and unexpectedly it takes its space. It is not only contagious from person to person, transmission even transcends species boundaries. It can be triggered by mere verbal mention or visual imagery. Without being fully understood in its physiological process. A photograph of someone yawning thus contains the trigger for this rare human loss of control. Potential viewers are therefore faced with the choice “either to forego the sight of the work of art or to lose (their) freedom” (Bredekamp, after Leonardo).