Gallery Shift: Genre Undetermined

It was the shift in the color that warned him. at first, before all this had happened, odds were that he would have thought it was some sort of neat visual effect that the gallery was using to help their art display, but the last week had turned him into a man who spotted the slightest incongruity and did not trust it. He dropped the glass of twine that he was holding and dove for the doorway. Behind him, he heard gasps from the other attendants at his effrontery. The twine unrolled and spread across the floor in a labyrinth of accidental options. The gasps of affront turned to a questioning buzz. Was this part of the performance? Was this something that they should be critiquing as well?

Inspiration: Random thing that came out when I started typing.
Potential: Medium-low. It's been done before. It could go other places, of course, but why strain myself when I've got so many other ideas clamouring for attention.
Notes: See above. That said, labyrinths and art and reality, oh my!