Corridor of Madness

'A British graffiti artist who goes by the name “Banksy” went one step further, by smuggling in his own picture of a soup can and hanging it on a wall, where it stayed for more than three days earlier this month before anybody noticed.

[...]

“My sister inspired me to do it. She was throwing away loads of my pictures one day and I asked her why. She said ’It’s not like they’re going to be hanging in the Louvre.”’ He took that as a challenge. “I thought why wait until I’m dead,” he said.' (MSNBC article)