During the scene where the kids are all sitting in the bedroom talking, when Molly describes a "boondocker", Bobby sets the end of a "cheese doodle" snack aflame. The second time you see him holding the snack, the amount that has burned has actually decreased, and the flame is smaller. He would have had to pick up and light a second piece, but you see no indication of this.
When Leonard first arrives, Molly is present with the other kids to receive him. He asks about Rex, and learns that Rex has been drafted during a visit to Israel. Later, Sam tells Molly that she is doing Rex's old job, and, sarcastically, that Rex "is summering elsewhere". She responds, "I don't blame him", as if Rex is now absent by choice.