You do bring up good points Rob. When I was going to school my parents had to list any allergies I had to the school. Students with a k9 allergy could be placed in another class. As for the service dog attacking another student, those dogs are highly trained I'm not familiar with a service dog ever attacking anyone. (Though I guess police dogs are techincally considered service dogs.) Doesn't mean that it hasn't happened, I just think is is highly unlikely.