Moose continues to share things about Natalie that humanize her: she likes the sunrise, and she loves her buttons. He also suggests that it's cruel to take her buttons away from her, implying again that the school isn’t the best fit for Natalie, if only because they won’t recognize her individual quirks. Mr. Purdy, meanwhile, alludes to the stigma against disability as he discusses his relationship with the neighbors. A generous read of his choice to expel Natalie is that he’d like to keep helping as many kids as possible, but it also seems likely that he sees Natalie as simply being beyond his help.