I saw some very funny graffiti today. When I got on the bus, some spanish exchange students were just getting off, and one of them was writing supposedly revolutionary slogans on a poster (out of the view of the driver). One of the slogans was "Bobby Sands Lives!"
When I got off the bus, half an hour later, someone had written underneath it: "Wow, after 22 years! Take that, David Blaine!"