Therapy with the father should not be spent focusing on the primary problem (I.e., sexual molestation).

Help him forget about it
Therapy with the father should not be spent focusing on the primary problem (I.e., sexual molestation). Instead, therapy should be spent "talking about other things" as the goal of therapy is "to help people forget about their problems"

Gardner, R.A. (1992). True and False Accusations of Child Sex Abuse . Cresskill, NJ: Creative Therapeutics. (pp. 585-592)

http://www.leadershipcouncil.org/1/pas/RAG.html