Walk into any supermarket and you can generally buy a banana for less than $1. But a banana duct-taped to a wall? That might sell for more than $1 million at an upcoming auction.

The conceptual artwork has an estimated value of between $1 million and $1.5 million at Sotheby's auction on Nov. 20.

That might mean the art constituted a dare, of sorts ... "But his work is often at the intersection of the sort of humor and the deeply macabre. He's quite often looking at ways of provoking us, not ...