Weekend Quiz 52: Where in the Lower Haight?

Though our flying kicks are the stuff of legend, this photo was not, in fact, taken at Haighteration headquarters.

Anybody know where we spotted this action? Update 6/12: We've got winners! Big ups to Facebook fan Michael and commenters Kathwins, "me", and Crazy Homeless Dude—it's the Academy of Tae Kwon DO on Oak between Scott and Pierce.