Ianto shrugged, taking another sip of his milkshake and frowning as he did so. He didn't like not understanding something. He liked to get to the bottom of a matter until he without a doubt just got it, he had a need to know, and when he just couldn't really wrap his mind around something, it bothered him. He tried to justify that, though. "Yeah, I guess. I mean, I'm just hearing about all of it today. I'm sure that there are things that I know a whole lot about from my time that you probably aren't very familiar with. ...can't really think of what that might be, but. I'm sure that there's something."