In Children of Earth: Jack arrives back at the Hub, Ianto works out that he's been killed again while he was gone... and hugs him, for no reason other than that. Shame that the Hub's about to be blown to smithereens.
Ms. Spears, talking to the imprisoned Lois.
Bridget Spears: It was another ten years before we actually worked in the same office. He asked for me. I didn't think he even knew my name... and we made quite the team. I'm not saying he was perfect. You know that better than me. But he worked hard, he always worked hard. I don't think that's valued enough these days, hard work. And he was a good man. I want you to know that. John Frobisher was a good man.