Through The Looking Glass by Lewis Carroll Chapter 1 Page 17

She said afterwards that she had never seen in all her life such a face as the King made, when he found himself held in the air by an invisible hand, and being dusted: he was far too much astonished to cry out, but his eyes and his mouth went on getting larger and larger, and rounder and rounder, till her hand shook so with laughing that she nearly let him drop upon the floor.

‘Oh! please don’t make such faces, my dear!’ she cried out, quite forgetting that the King couldn’t hear her. ‘You make me laugh so that I can hardly hold you! And don’t keep your mouth so wide open! All the ashes will get into it — there, now I think you’re tidy enough!’ she added, as she smoothed his hair, and set him upon the table near the Queen.