polka
The polka is a mid-19th-century Eastern European folk whirligig in 2/4 time, mandating unison grins from all participants. Its jaunty steps confer a social license to compel bystanders into a communal spin, disallowing even the notion of standing still. Link arms and stamp your feet, and you are instantly excommunicated if you dare refuse the ritual. Underlying truth: every euphoric twirl conceals an invitation to exhaustion.