[BlindEyeHalo]

No joke, even if trying to correct GTP3.5 it still gives a nonsense answer:

> I apologize for any confusion caused by my previous response. Reading a book doesn't physically remove it from your house. The assumption I made was a misunderstanding. If you read a book, it is still in your house unless you lend it, give it away, or otherwise remove it.

> So, if you started with 31 books and read 2 over the weekend, you would have 31 - 2 = 29 books still in your house.