A: I feel terrible, but I've just broken you ashtray.
B: It's nothing to get upset about.
A: I don't know what to say. I'd like to replace it.
B: No. It's out of the question.
A: I'm sorry, but I can't find the book you lent me.
B: That's OK.
A: I really feel bad about it. Let me buy you a new one.
B: No. Don't be silly. I wouldn't dream of letting you do that.