If it has to do with relationships, pecking order, someone's mother's idea of propriety, or vicious gossip, "—You wonder" helps you dodge the bullet, or simply stay out of the way. This is part of a larger problem — attacks against those not present — Other tools for defending yourself from attacks against your partner, include (1.) Nothing complicated, (2.) Don't worry, (3.) Says who? (4.) Unheard of, (5.) Don't laugh, (6.) No rules, (7) So foolish, and (8) Control yourself! (–Source: taxi1010.com stargate06)

"What do you think our relationship is built on?"
—You wonder.
—A little peace and quiet.

"A little superficial, isn't it?"
—You wonder.
—From your point of view.

"He's extremely fragile."
—You wonder.
—Everyone has to treat you a certain way! ... Oh, he's a different case ... We'll see ... You've been wrong before.

"Sir! Sir! Who is your employer?" [From some self-styled security guard]
—You wonder.
—There's not many, so it doesn't matter.

"Are you dating someone from Danville?"
—You wonder.
—You don't know how lucky I am.

"Who needs you?"
—You wonder.
—Bitchy rednecks ... I don't even care anymore.

"He's nothing; he's really inconsequential." [Your father]
—You wonder.
—That's the trouble with having a lot of money.

"I pity you."
—You wonder.
—Not all tears are the same.

"I understand ... You're not your brother's keeper."
—You wonder.
—Don't allow yourself to wonder what you'll do next, and then you'll live into it.

"Your friends are not always who you think they are."
—You wonder.
—All your base are belong to us ... You are on the way to destruction ... HA, HA, HA, HA.

"You're being extremely inappropriate." (–Carrie Prejean)
—You wonder.
—Long range ... Not many people have knapsacks at forty thousand feet.

"Who did you used to be?" [Belittling "Elderspeak"]
—You wonder.
—A naked stranger ... Too bad Janice Joplin died ... Big shots! ... Navajo ... They all think I'm weird because I'm not seeking status in a prescribed manner.

"Penny: In choir that girl was sitting in front of us and we kept going, 'Moo.' ... Karen: We were going, 'Come here, cow; come here, cow.' ... Bonnie: I know. She is one ... Penny: She looks like a big fat cow ... Julie: Who is that? ... Bonnie: That girl on the basketball team ... Penny: That big red-headed cow ... Julie: Oh, yeah. I know. She is a cow." (–A group of eighth-grade girls in the cafeteria discussing an overweight classmate whose breasts they consider too large for her age, as reported by John Tierney in "Can You Believe How Mean Office Gossip Can Be?" The New York Times, 3 November 2009)
—You wonder.
—It's getting squirrellier and squirrellier ... If you think about it, a squirrel is just a fancy kind of rat.

"Why do people become ugly as they grow old?"
—You wonder.
—There's a reason people drink wine in France.

"I overheard the conversation."
—You wonder.
—The fact too good to check.

"Oh, I saw your card; it's very nice. Did you scan a picture of Sam and then trace it?"
—You wonder.
—You can't scare me.