Wenn's anfaengt durch die Decke zu tropfen / When it Starts Dripping from the Ceiling

Where? Museum Ostwall, Dortmund, Germany
What? Wenn's anfaengt durch die Decke zu tropfen / When it Starts Dripping from the Ceiling
- an installation comprising a tower of wooden slats, under which a rubber trough was placed with a thin beige layer of paint representing dried rain water
Who created it? Martin Kippenberger
What happened? The rubber trough now gleams 
Who done it? The cleaning lady has scrubbed the trough a month ago, thinking that the beige paint of 'dried rain water' was really just stains.
Worth? 800,000 EUR as determined by insurers

Photograph: Bernd Thissen/EPA

Before this incident, how many in the world has heard of Kippenberger, or this piece of work, or Ostwall Museum, or even Dortmund?
Kippenberger should be laughing in his grave - his painted stains was interpreted as real stains, i.e. he has successfully blurred the line between art and life!
All thanks to an overzealous cleaning lady, now more than 800,000 people all over the world knew about it, discussed it, and laughed about it.  
That's worth more than 800,000EUR!  Would it have inspired that much worldwide reaction left on its own with the collector?

Lots of artwork has to go through restoration anyway.  And if the museum has really valued it that much, why was there no monitoring of the artworks and the 'damage' was found only a month later?  What about CCTV footage?  Where was the guard, if there's even one at all?

Most people relate this incident to a hilarious scene from "Bean: The Movie"

The hilarious disaster in the movie has made the James McNeil Whistler's painting "Whistler's Mother" so famous, that when I visited Musée d'Orsay in Paris, lots of tourists wanted to be photographed with it.  
Who knows, the Kippenberger installation in Museum Ostwall may now become its most photographed piece.