Momentary Collective Freak Out

Was at the morning market, Pasar Sindhu in Sanur, at the stand where I get spices and suddenly it seemed all the women in the room were whooping, hollering, no words. It was over in half a minute. I've experienced that there before. The spice woman said someone was under too much stress so I took it to mean that one person had to start screaming and then all her compatriots join in to show support. It's pretty neat.