Then I'm not sure what you call that. A Freudian slip?

[Yep, he's stumped. But after a moment, he shakes his head, his expression brightening up again.]

Well, as long as you feel fine, that's what counts. There's no need to make a big deal out of some silly noises. Perhaps you felt so glad to be eating here with me that you got overwhelmed, so you simply didn't know what to say, and your brain decided to substitute some nonsense sounds! ♪

[He proposes this new theory cheerfully, taking his fork and using it to stab the strawberry that fell on the table. He transfers to Jun's plate for now, picking up another piece of pastry with his fork so that they can try the feeding thing again.

But in his mind he's still hung up on the barking. And after going over their previous interaction again he adds,]

Unless it was "Good boy" that was the trigger. It does sound similar to "good girl," which is what I call Mary.