One more shot from the Toronto visit. This is the outside of Steve Mann‘s gallery/house near the University of Toronto.
And here’s the thing: On the outside is a giant QR code. What are you supposed to do with QR codes? Take pictures of them, so that you can be directed to a website. But right in the middle of this one is a symbol that says “no cameras.” So take a picture. But don’t.
But wait, there’s more. If you do take a picture of the building, it notices and it will take a picture of you too. And then post your picture on its website.