Sometimes it feels like people throw around the term "only in San Francisco" with a little bit too much carelessness. Just because someone told you there's a 45-minute wait for brunch or three of your friends are all competing to become the mayor of the new Norwegian-inspired taco truck on Foursquare doesn't entirely justify the declaration that those things could exclusively happen here in town. On the other hand, sometimes the phrase is actually warranted. Take what happened during Monday's...