When you don't have anywhere to stay for the evening so the challenge is to hook up with someone who has a hotel room.
Ideally stag or hen do's in holiday towns who will have hotel rooms booked.
This is an especially useful game to play when you have a lot of friends planning on staying at yours but you don't have the room for them. Challenge them to stay at the P&V B&B
"Did you book your hotel room yet?"
"Nah I'm gonna stay at the P&V B&B"
"Good idea, there is a recession on after all"