I don't know why I got to thinking today of modern art, but I did, and it reminds me of a stunt my brother pulled when he was a teenager.
He and a couple buddies went to a modern art gallery, and apparently had the reaction I've had, which can best be expressed as, "Huh?" So they pulled off their shoes and dumped them in a corner of one room, then went off to the side, sat down and watched.
People came and went and examined the pile of shoes in the corner, meditating upon it deeply.
My brother and his friends, meantime, could barely contain their laughter.