Let me introduce you - if you still haven’t met him - Karl . Karl is the most mysterious resident of San Franciso ! See him on 2. Photo and go to 3. to understand who he is. He has insta page and all that , totally famous . On the first 3 days of my San Francisco stay I have seen him all the time 😅 Apparently in August it’s normal . I probably just got lucky when he went away a bit .