"You are too hasty, sir," she cried. "You forget that I have made no answer. Let me do it without further loss of time. Accept my thanks for the compliment you are paying me. I am very sensible of the honour of your proposals, but it is impossible for me to do otherwise than decline them."
– Jane Austen
Pride and Prejudice, Chapter 19. Mr. Collins is so certain that Elizabeth will say yes to his marriage proposal, he doesn’t give her a chance to speak. So she has to interrupt him to get his attention. She politely turns down his proposal.