Call it the lost art of drinking responsibly: A man entrusted with helping to sell a $1.3 million painting said it disappeared while he was in a drunken haze, according to a lawsuit filed by a co-owner of the canvas.

James Carl Haggerty took the painting, noted French artist Jean-Baptiste-Camille Corot’s circa 1857 “Portrait of a Girl,” to a Manhattan hotel on July 28 for a potential buyer to examine, Kristyn Trudgeon’s lawsuit said. Then Haggerty hung out at the hotel bar and was seen on security cameras leaving the building with the painting after midnight, according to the lawsuit.