Cobain behaved insolently toward adults during this period of his youth, and began bullying another boy at school. Such misconduct eventually caused his father and Westeby to take him to a therapist, who concluded that he would benefit from a single family environment. Both sides of the family attempted to bring his parents back together, but to no avail. On June 28, 1979, Cobain's mother granted full custody to his father. Cobain's teenage rebellion quickly became overwhelming for his father, who placed his son in the care of family and friends. While living with the born-again Christian family of his friend Jesse Reed, he became a devout Christian and regularly attended church services. He later renounced Christianity, engaging in what was described as "anti-God" rants. The song "Lithium" is about his experience while living with the Reed family. Religion remained an important part of his personal life and beliefs.