Well, now he can't keep away. John turns and walks back over to fetch up the tablet and have a look. It's, well, other than him sounding somewhat monotone - it's always odd to hear his voice, especially when he's... a bit shut down like that - there doesn't seem to be anything wrong.

He hands it back to Alfie. "You don't like me talking about World War Two?" He's not trying to be flip. He really doesn't see what's wrong with that.