The twelve jurors were all writing very busily on slates. “What are they doing?” Alice whispered to the Gryphon. “They ca’n’t have anything to put down yet, before the trial’s begun.”
“They’re putting down their names,” the Gryphon whispered in reply, “for fear they should forget them before the end of the trial.”
“Stupid things!” Alice began in a loud, indignant voice; but she stopped hastily, for the White Rabbit cried out, “Silence in the court!”, and the King put on his spectacles and looked anxiously round, to make out who was talking.
Alice could see, as well as if she were looking over their shoulders, that all the jurors were writing down “Stupid things!” on their slates, and she could even make out that one of them didn’t know how to spell “stupid,” and that he had to ask his neighbour to tell him. “A nice muddle their slates’ll be in before the trial’s over!” thought Alice.

Alice's Adventures in Wonderland, Chapter 11 - Who Stole the Tarts?