Joinee Kes' drinking game of choice.
Everyone is assigned a number.
The first person says:
"I'm number one spot, I've got no spots. How many spots has number 5 spot got?"
Number 5 then replies in kind.
If someone trips up then they drink, and are given a spot on their face using a burnt cork, and thence are required to say that "I've got ONE spot" when so invited.
If you're playing with Mhairi then pack earplugs...