Since I have been here several fads have gone around the age 4 classroom: putting a scarf over your face to be a bandit, jumping off tree stumps that have been in the play yard the whole time but someone just noticed. Digging sand like dogs, looking at the underside of the table each time the teacher looks away. Today it was holding fingers to make a gun a shooting the 3 year olds after breakfast. it seemed so spontaneous but universal which makes me suspect they are unionized. Or a flash mob.