, that she takes him to her pre-kindergarten classroom at Outreach Christian School in Avondale, Mo. (pop. 440), and makes him the centerpiece of lessons about compassion and community service.???He???s just a big love bug,??? Pack says about the 70-pound pooch, whose deafness was a disability until she bought him from a breeder in 2010.Because of Junior, Pack teaches her pupils sign language and