Context: I lost the book that my friend let me borrow. I feel so embarrassed.
Speaker 1: I lost the book that my friend let me borrow. I feel so embarrassed.
Speaker 2: Oh no! Can you replace it?
Speaker 1: I'm trying to find a new one, but this one was rare and hard to find. 
Speaker 2: I'm sure your friend will be understanding that it was a mistake.