"You know what you need to do," Jack suggested. "Stop acting like an alien and start thinking human. Sure, there might be psychic wavelengths, but that's got nothing to do with it! You'll never understand it if you try and analyse it like that."

Jack leaned his arms forward against the table, and turned his drink around in his fingers.

"Christmas is commercial. If you were cynical minded you might say that's all it is. But I prefer to look at this sort of stuff. The people. I mean come on, Doctor, just look at them! Laughing, fighting, singing, drinking. Getting together with people you know. That's Christmas."