im sorry i know this is over but heres one thing you have to remember that dogs are inbred. say a owner in the 1940's buys 2 purebred pups from the same littler and decides to breed them, brother and sister, they get a good 5 years in and on their last litter the owner keep 2 pups, a brother and sister, and they get a good 5 years in and so on and so on. if being inbred can make a person mentally unstable imagine what it can do to a dog over all those years. also who knows how many times the dogs were inbred before the owner in the 40's buys them? (i've seen some people that were inbred in goldbar and it was not a pretty site, one stole some of my buddies fishing gear and she almost beat the s#it out of him)next time we all buy a dog go to a animal shelter or make sure they are not inbred a whole hell of alot.
Tyler
P.S. I'll shut my mouth now