'This is me, Hee-haw. I'm going to tell you a story. Not just any old story - a Christmas story. You're going to see the most beautiful paintings and drawings in the world too. You'll probably be surprised to see how many pictures I'm in. Hundreds - no, thousands! And that's because I, Hee-haw, play a very important part in this story. As you will see.' Martine Gosselink, director of the Mauritshuis museum, tells the Christmas story through the eyes of Hee-haw the donkey, drawn by Thé Tjong-Khing. 'How come? Because I was always there!'