Facts: Neither parent is a paragon of virtue. Sally has a temper, and even bit her husband during a fight in front of the children. Ned tends to drink too much and then becomes an argumentative authority figure.
Action: A forensic mental health professional was hired to interview the family and others who know the family to write her observations in a report which the judge would use to determine the custody and visitation issues concerning the family.
Result: Sally was made the domicile parent because during his interview, Ned said that he was a better parent when he was sober. He then was given visitation privileges but with the caveat that he not drink while with the children.