"Lewis Carroll was especially kind to Charlie and me, though when I was only five I offended him once when, at a children’s party at Hatfield, he was telling us a story. He was a stammerer and being unable to follow what he was saying I suddenly asked in a loud voice, "Why does he waggle his mouth like that?" I was hastily removed by the lady-in-waiting."
January 1, 1970
https://en.wikiquote.org/wiki/Lewis_Carroll