🚀 go-pugleaf

http://www.theatlantic.com/doc/prem/199409/gallagher
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An offspring of Cry Havoc and One Tough Cookie, Slick Willy is the 
second bull terrier fortunate enough to belong to David Lykken, 
a psychologist interested in temperament. Temperament, which is 
reflected in a creature's manner of behavior, is personality's 
biological, enduring, and *HERITABLE* aspect. It greatly contributes
to but does not entirely explain personality, much as innate 
intelligence contributes to but cannot entirely explain ability. 
Willy's TEMPERAMENT ORIGINATED when the English bulldog was 
deliberately crossed with the white English terrier, almost 200 years
ago. The nature of the resulting fearless, tenacious fighting machine
requires a DIFFERENT SORT OF NURTURE than that of dogs bred for 
complaisance....good behavior depends on an appreciation of...innate
disposition and a judicious balance of carrot and *STICK*.
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Tendency to aggression, a profound DAFN trait, is *genetic*, embedded
in the DAFN DNA. A "different sort" of nurture is definitely
required: like a *Prizon_Cell*...