The public service announcement on the left is courtesy of the TTC. The public service announcement on the right is courtesy of the MTA. On Friday morning, Accordion Guy Joey deVilla juxtaposed the two on his blog, along with the question "who plagiarized whom?" Well, presuming that plagiarism is defined as the lack of attribution for an idea, then fortunately neither. This particular TTC poster, like a number of others (and even some of......