When Betty arrives at her ex-husband's house and drives her car into his front door, the night is perfectly clear. Moments later when the police arrive, it is foggy outside.
Due to extensive renovations on the Coral Reef house, Dan and Betty move the family to another house. When they separate, Dan says he'll move back alone and work around it, and arrives to pick his way through a flurry of activity, but when Betty drops the kids off shortly later, the renovators have all conveniently vanished to make room for them.