This book is one of the major original contributors to psychopathy research, it helped define what we actually know as psychopathy today.
Here's a link to a copy of the 5th edition.
http://www.cassiopaea.org/cass/sanity_1.PdF
I think most you of you will find pages 4-7 (book pages, not pdf pages) somewhat interesting, or perhaps amusing. I'm sure Cal will like them.