Gangs of children...

Today I was eating lunch in the faculty room at an elementary school that has only kindergarten and first grade classes. One of the first grade teachers walked in and told me about two boys she just saw walking down the hall backwards. She stopped them and warned them that they may run into a teacher or something as they almost walked into her. She clearly thought they were funny and went on to say, "kids are funny when there are only one or two of them as opposed to when they are in groups or gangs... or what do they call them? Oh, that's right - a classroom!"