Amy is upset when she finds out her parents threw her brother Peter out of the house....
Marie: Oh, Amy dear, you have to understand. A child is like a baby robin; you feed him, you nurture him, you get him strong so when the time comes, he's ready to fly away and bring you back grand-robins. But no matter how much you want him to, sometimes there's a robin who just won't fly away.
Frank: And before you know it, you got a 40-year old robin who can't lift his ass out of the nest.