Sister, sister
In “Black Market Baby,” a second-season “Dallas” episode, Pam (Victoria Principal) is in Sue Ellen’s bedroom, where Sue Ellen (Linda Gray) sits on the bed looking at newly bought baby clothes.
PAM: I think I know what’s going on with all of this. Are you sure you know what you’re doing?
SUE ELLEN: Am I now getting advice from a shop girl?
PAM: This shop girl just took a phone call for you – by mistake. It was from some girl wanting to know what hospital you want your baby born in.
SUE ELLEN: We’re adopting a baby.
PAM: That wasn’t an adoption bureau I talked to. It was probably that girl I met you shopping with.
SUE ELLEN: What do you know about all this? You can have a baby anytime you want one. What do you know about wanting to have a baby and not being able to get one? Well, I went to an adoption agency, and they said I’d have to wait for three years. Well, I can’t wait for three years.
PAM: Why are you so frightened that I’ll have the first baby? This isn’t a contest. It doesn’t matter who has the first child.
SUE ELLEN: Well, you tell that to Jock and J.R.
PAM: J.R. doesn’t know about this?
SUE ELLEN: [Shaking her head] No. And I don’t want you to tell him, because I want that baby. And nobody’s gonna stop me. Not you, not Jock, and not J.R.
PAM: Sue Ellen.
SUE ELLEN: Pamela, this is none of your business. [Stands, walks to the door and opens it.] None of your business.
Pam leaves, and Sue Ellen closes the door behind her.
Dallas Decoder 
“None of your business” is a phrase that gets thrown around Southfork an awful lot but is rarely heeded.
Ha ha. So true!