You've avoided the busy hours in the tearoom all year but there is no escaping the dreaded office small talk at the Xmas party.
Strap yourself in for 45 minutes of weather chat with Duncan the cleaner or an hour long "what are you watching on Netflix?" chat with Chantelle from HR.
DON'T BITCH ABOUT WORKMATES
They're probably standing directly behind you.
NO NAME-CALLING
I mean this in the literal sense. Don't try and call people by their names. You're going to call Matt from tech Michael and it'll be awkward.
Cut the risk by calling everyone "You" "Mate" "Buddy" "Legend" etc.
DON'T TEASE THE DJ
There's a high chance he's your boss's kid or nephew.
Even when he plays Black Eyed Peas' I gotta feelin for the third time, zip it.
DON'T ASK WHEN THE BABY IS DUE
Do not - under any circumstances - ask a female employee when her baby is due. Even if you are 98 per cent certain she is carrying triplets. Even if she is in her 35th week, do not ask. If you are wrong and she isn't preggas it is the end of everything. Forevs.
DON'T DO JOKES
That joke you think isn't racist ... probably is.
NO ONE CARES THAT YOU'VE QUIT SUGAR
Stop talking about it. This is also a tip for everyday life.
DON'T ASK THE GAY EMPLOYEE TO START THE DANCE FLOOR
Whether it is a wedding, a 21st or a work Christmas party us gays get asked to do this a lot. It's exhausting being the life of the party.
DON'T TWERK
If you are old enough to read this, you're too old to twerk.
DON'T DO SHOTS
No.
DON'T KICK ON AFTER
Not worth it. Go home.
EXIT STRATEGY
Daryl Braithwaite's Horses will be the last song. It always is. When you hear that sweet opening line 'We will fly, way up high,' leave. Beat the crowd. Cab rank to yourself. You're welcome.
And finally for the love of Jesus DO NOT HAVE SEX WITH ANYONE IN THE TOILETS.
Have some Christmas dignity and use the car park.
Merry Christmas!