Woman @ the RFID checkout tells me that the screen says that she can't check out. I look at her account and tell her that she has $64 in fines. I tell her that the fines are for overdue materials.
Woman: What do you mean?
Me: It is x amount per day, and these books are more than a month late.
Woman: I didn't know there was a due date... that's why I checked out so many of these kids books.
Me: The due dates are on the receipt.
Woman: I threw away the receipt. I just thought we could take as many as we want and return them when we can. I never heard of a "due date." OMG, my husband is going to kill me!