The contrast is stark: two kids alone, sitting on the sidewalk across the street from Carnegie Hall, throwing pieces of pretzel at pedestrians, is anyone else whincing at the thought of the amount of germs these two will be carrying home with them!?  More importantly, why was no one else around me thinking this was a strange hangout spot for two unsupervised 8 year olds?  Some one needs to scoot those two right into summer school.