At a Christmas potluck last night, Matthew points to one dish among the many crammed onto the long table, groaning under its calorie-rich burden. It's a colourful dish, dark green and white, aromatic with curry and ginger.

"Look, dear. You should have some of that. It looks like just your kind of thing."

"You called that one right, love... It's the one I brought."

I love that man.