You are right, and I don’t condone abusing this policy. That’s actually the only time I’ve ever returned a book late since grade school.
There is a high degree of redundancy in the books contained in the branch locations of the Taipei City Library. Each of the two books I borrowed had multiple other copies available. There is also an online search engine that lets you see which locations currently have the book you are looking for.
I’ve never tried it, but there might even be an inter-library loan policy where they will deliver the book from another branch to your local branch.
All in all, I love the libraries here. I wish they had more English books, but hey, we’re in Taiwan, right? I’m very thankful for whatever they have.
In the past two years I got to read all five Harry Potter books and the Lord of the Rings trilogy. I never thought I’d be able to do that in Taiwan without having to actually buy the books.