From the ABC transcript of the interview:

DIANE SAWYER: As we move away from this primary campaign into the next phase– again, on Yahoo, we got two questions most often, first about Seamus– which as you know is out there forever– would you do it again?

MITT ROMNEY: Certainly not with the attention it’s received.

DIANE SAWYER: You said it was the most wounding thing in the campaign–

ANN ROMNEY: It’s crazy.

DIANE SAWYER:–so far.

ANN ROMNEY: The dog loved it. The dog was, like–

DIANE SAWYER: But the dog got sick, right?

ANN ROMNEY: Once, he– we traveled all the time and he– he ate the turkey on the counter. I mean, he had the runs. But– he would see that crate and, you know, he would, like, go crazy because he was going with us on vacation. It was to me a kinder thing to bring him along than to leave him in the kennel for t– in– in– in a kennel for two weeks, so.