SFist (among other places) commenter davitydave's candid shot of a Muni rider near the Duboce Tunnel reminds me a bit of Llewyn Davis. Somebody get that guy a cat!

Photo submissions for Photo du Jour, Morning Links and Day Around the Bay are gladly accepted right this way in the SFist Flickr Pool, or tag them on Instagram as #sfist. That's what davitydave did, and look at him now!