Max had difficulty in preschool. He didn’t like circle time and left the group to read on his own. He didn’t like the other children touching him or his things. When they tried to look at his toys, Max would scream or hit them. He didn’t like to play with other children at all, and avoided any of the imaginative play going on in class. Instead, he stacked and sorted Lego pieces by color, size and shape. If other children wanted to play with Legos, he wouldn’t share. He did not know any of the other children’s names. Max had a lot of idiosyncrasies that were accommodated at home but were troublesome at school. For example, he didn’t like the color orange and resisted being near anything of that color.