FYI Burns is actually David Bailey, the newspaper editor/track coach/civics teacher/ladies' man who I believe still works at Lincoln High School in Portland, OR (the same high school Matt Groening went to, the same one that has a cement pavement square with a hand-drawn Bart Simpson behind the school). Most of us who made it through Bailey's Civics classes know this ;)

Count beats of the rotating feet as "right/left" for a moment, then purposefully reverse the pattern to what you know is wrong; any change in strong internal beat associated with the pattern will change the direction.

Neat find.