While still an unknown artist, he asked to paint a couple's trailer in exchange for giving them tickets to the Glastonbury Music Festival.

In 1998, before his notoriety and rise in street art, Banksy asked a couple if he could paint a mural on the side of their 30-foot trailer home. He was a little known graffiti artist at the time and offered them a pair of tickets to the Glastonbury Music Festival in exchange. The couple agreed, not knowing that they would one day be selling this $1,000 mobile home for $500,000 because of the mural on its side.

fact via / image via