I really enjoyed this horror/parody combo. The catalog pages at the beginning of each chapter were inspired, and I think some of the contraptions further in might be giving me nightmares for the next few nights. 
 The implication that working retail is much like being in prison was something anyone who's worked on the floor can identify with, and the *monsters* we're very unsettling yet familiar in their facelessness. 
 I'd recommend this book to anyone looking to be one part disgusted, two parts terrified, and three part delighted.