According to the tale, the man invented fake histories for every painting.
Was a man named Ethan Caldwell arrested after posing as a museum tour guide and inventing completely fake histories for every painting? No, that's not true: The story originated on an Instagram page ...
He calls himself 'Grumpy Guide' Joseph Langelinck, and his museum tours at the Kunstpalast in Düsseldorf are booked out for months. His recipe for success? He insults and humiliates his customers.