D.W. desperately wants a book at the library, and she has to learn how to write her name to get a library card. After she does get a library card, the book has already been taken out, and she struggles to wait for it to be returned. Having had enough of D.W., Arthur gets mad and hits her for tossing his model airplane out the window and breaking it, but nobody sees his side. Worse, when the Tough Customers hear about this, they dare Binky to hit him the next time he sees him.