Bad At Book-Keeping

(My mother and I are both huge bookworms. I’m in a bookshop with her when I spot a few I like.)

Me: “Hmm. I’m not sure whether to get these or not. I’ve got quite a few at home to catch up on.”

Mother: “Go on, treat yourself. It’s been ages since you bought any new books.”

Me: “What about that haul the day before yesterday?”

Mother: “Yes, but before that it’d been a while.”

Me: “I brought another load of books last week.”

Mother: “Okay, before THAT…”

(I love my mom.)