Dead Lions
The game starts when you and your partner are relegated to separate single beds in the parental home.

The aim is to tiptoe across the landing to the room where your better half is sleeping, without waking the slumbering parents, or "lions". Once in the room, anxious, hushed coupling may take place.

Remember: this game favours the "lions", since they have had three months' notice to install rusty springs and a headboard that, at the slightest hint of sexual congress, bangs against the bedroom wall like a jackhammer.

20 Questions
Play begins at noon on Boxing Day. You open the game by clapping your hands together and saying, "Well, we really must be going…"

Play then passes to the parents, who are allowed twenty yes-or-no questions to try and stall your departure.

The first question must be "Are you sure you won't stay for some cold meats?", followed by "You know the trains are not running?". Questions are allowed to escalate with no top limit, even as far as "You do realise your father might not still be here next year…?"