182). Social rejection leads to social isolation, even social ostracism. The behavioral inhibition deficit causes students with ADHD to make choices impulsively and emotionally overreact (Hallahan et al., 2012, p. 182). Joey's social relationships were also affected by his behavior. He experienced social rejection, even social isolation. The other students call him Zippy because of his hyperactivity. When transferred to a special education class, Joey befriends a boy named Harold and meets another friend, Charlie, when he is sent to the special education center. Making new friends with other people who were also disabled gave them something in common. In addition to ADHD, Joey also experienced emotional problems. According to Hallahan, Kauffman, and Pullen (2012), it is common to have other conditions coexisting with ADHD. Some experiences that have impacted Joey's relationships are his possible exposure to fetal alcohol syndrome since Joey's mother drank while pregnant, verbal and physical abuse from Joey's grandmother, abandonment by his parents and the hereditary ADHD passed down from his father and grandmother. Strong evidence links neurological dysfunction, rather than actual brain damage, to ADHD, while heredity also plays a very important role in the onset of neurological dysfunction (Hallahan