"These are idiosyncratic phrases of Minuchin's who likes concrete metaphors. If a therapist borrows them, he must make them personal or, better, select his own phrases to highlight intrusion into psychological space, indicating and separating overinvolved dyads."
When sister answers for brother:
"You're helpful, aren't you? You take his memory."
"You take his voice."
"If she answers for you, you don't have to talk."
"You are the ventriloquist and she is the puppet."
"Your hallucinated voices are not even yours; your father's voice is talking inside of you."
"If your father does things for you, you will always have ten thumbs."
"If your parents know when you need insulin, then you don't know your own body."
From Minuchin, S. & Fishman, H.C. (1981).
Family Therapy Techniques. Harvard University Press. Cambridge, MA.