This actually happened a couple of months ago, during the height of the textbook rush. I had spotted a customer who seemed in need of some assistance, so I sauntered up to him, and the resulting dialogue went like this:
Me: Can I help you with anything?
Him: Yeah, is this the textbook for [course number]?
Me: It is.
Him: Ok, how much is it?
Me: It's $98.50.
Him: Ok. Um, so is there a photocopier in the bookstore that I can use for awhile?
The funny thing was, he was dead serious. He could not understand why I would not let him simply photocopy his textbook rather than buy it.