How can you destroy a work of art through experiencing it? Slowly?
A canvas floor where the viewer has to walk through mud to walk on it?
Something so fragile that it breaks when it is walked on?
Food that rots?
Flowers that die?
An image that fades in light?
EDIT - 7th December.
I have found, and begun, a way of exploring this idea. I have painted an apple grey. I await it's rotting.