Performance artist Maria Legault was commissioned to create a piece for Scotiabank Nuit Blanche 2009, so she created a group engagement called the Apology Project.  More information can be found here in the Nuit Blanche website, but essentially the peoject involved 50 people wearing paper yard waste bags, congesting an outdoor corridor and apologizing to all who came through. It was voted the popular favorite of the whole festival, and I was thrilled to perform in it.