The idea of Mr. Collins, with all his solemn composure, being run away with by his feelings, made Elizabeth so near laughing that she could not use the short pause he allowed in any attempt to stop him farther, and he continued.
– Jane Austen
Pride and Prejudice, Chapter 19. When the socially awkward and serious Mr. Collins solemnly proposes marriage to Elizabeth and at the same time speaks about running away with his feelings, she has to stop herself laughing.