[Ianto nods at her explanation. Hampstead. He's been through that area a couple of times, but obviously not in the era that she had herself. But Jack on the other hand, and Tosh, even.]

My boss. It's a long story, but. He was a captain, in the RAF. He's told me a little bit about the war, but. It's not really something that people enjoy talking about, is it? [He glances away.] I'm sorry, I...

[He's a bit terrible at conversations when he's not at his best.]