Here we see a simple blue Sharpie--and judging by the whimsy of the "i," written by a female--used to express affection for another person or, though it's doubtful, the Muni train itself. We believe the graffiti speaks to another person since any love for Muni is suggestive of psychosis.

Anyway, it's kind of nice to see graffiti on the outside of a Muni car instead of tagged on a window; it's so cinematically gritty. Combine the bout exterior vandalism with its aw-shucks message, and we appreciate it overall-- the most endearing graffiti we've come across.

Grade: B