"Been down on a marine lately?"
(Click to enlarge)
With a few cleverly-placed stickers, a prankster has altered this bus ad in San Francisco.
This sticker is careful to follow the theme.
– Guerrilla Muni ad, Pt. 4: Been down on a Marine lately? Muni Diaries>>
– Fake Muni ads cause some double-takes, The Examiner>>