An elderly German woman was questioned by police after filling in blank spaces on a crossword puzzle that was being displayed as a work of art at a local museum.

The BBC reports that the 91-year-old woman used a ballpoint pen to write on the work of art titled “Reading-work-piece” by avant garde artist Arthur Koepcke during a senior citizens tour to Nuremberg’s Neues Museum.

If she thought it was rubbish, it means it was. Art should be understood by everyone — including cleaners.