‘Main office conversation today: Who slept the least last night and who put on the most weight in two weeks’: Twitter explodes with #backtowork memes as workers return from their 17 DAY Christmas break It’s been a long Christmas holiday for many Britons who only needed to take eight days of annual leave to enjoy a 17-day break. But the realisation that they were returning to the office today was almost too much to bear for some who shared their back to work blues on social media.