My friend Becca is not only generous with her loans but also with her gifts. I quite often come home from book-club with a pile of extra books she's picked up second-hand with the comment 'I knew you wanted to read this...it was only 20 cents...I just had the get it for you!'
But here's my guilty secret...I'm not a fan of loaning out my books. In the same way I'd rather buy than borrow books in order to possess them, I'd rather not loan them. They're like children and I worry when they're having a sleep-over.
Having said that there are some people I would never hesitate a loan. After many an excited conversation that usually goes like this 'ooo this book is soooo good, you have to read it...I can't wait to talk to you about it...here take it and let me know what you think...(all my work friends know how this conversation goes). In the same way any of my fellow students were often on the receiving end of my largesse, because some of our uni texts were just too expensive to be sitting on my shelves when they could be out there doing good.
I don't have a system for keeping track of who has which book, perhaps this would enable me to be more generous but for now I'll just stick with loaning to the friends who've never let me down and are always good for hours of happy book-talk after they've returned my baby.
Speaking of which Becca did you loan my Bec Twilight? I've seen her reading it (& Rick too) maybe we borrowed it last Bookfreaks? We did come home with a lot of extra books and that startled look you mentioned!