Phew, glad I got here just in time before the lock-in!
Hey, maybe we could have a game of Jacks? A pack of cards is shuffled and dealt around and around. The first jack up decides on a drink - its usually a horrible concoction, such as cherry brandy, whisky and cider etc! The second jack pays for it. The third jack has to taste it and the fourth has to drink it down in one go. Ughhhhhh!! It carries on until someone falls down or the money runs out ....

"Come fill up your glasses and let us be merry ...!"