ADHOMINEMS, appealing to prejudice and emotion rather than reason, attacking the character, motives, etc. of an opponent rather than debating the issues on logical grounds. Adhominems are the only way that those who are blind-sided by the Watchower can debate the issues. They don't address the core issues raised or asked, they attack the person. This is what I see your Dad doing in his E-Mails to you.
Blueblades