now madness broke out ; dancing , cheering , two youths in the middle of the crowd kissing each other , children riding on their fathers ' shoulders , or pushing through the thickets of adult legs in a mad chase ; girls throwing handfuls of wheat over the crowd , young women playing tiny two-note whistles that shrilled and squealed , old men singing songs even older , impromptu circle dances that grew like whirlpools , sucking in more and more dancers as they spun , young men shouting out some kind of question-and-answer song .