I could not care less about Starbucks closing across the nation for three hours yesterday for "training" (I haven't bought a Starbucks coffee in three years). But that bit was nothing more than a publicity stunt. You don't need to close all the stores at the same time to school your employees. It was done to get attention.
And, man, did it work. That story is everywhere. (I saw it on the local news, on ABC's World News Tonight, and now The Today Show). The amount of free advertising dollars had to be astronomical. (And I guess I'm part of it.)