Everything in Marcels' attitude stimulated the Dada's fury. It was then that in a truly magisterial gesture he expressed the horror all these young artists felt for the art of the past which in their eyes was part and parcel of the infamy of civilization.
He made a 'corrected ready-made' from a photograph of the Mona Lisa by adding in pencil a moustache and goatee, and the formula L.H.O.O.Q.. ( editors note: the letters L.H.O.O.Q. when read aloud in French sound like: 'Elle a chaud au cul' and in English - they would be read aloud as LOOK. )