Nature vs Nurture. It's not all nurture.
I agree with this. However.....
Every dog I've owned so far (4) has been excellent. One rescue, 3 purebreds. Also, I've had 4 cats. Again-- all extremely friendly. People remark on this all the time. I constantly hear "Well, YOUR cats...but they're not normal". What does this mean? My vets say to me every time I go in how much they love my animals because they're "so good". (X11, I'm talking in a general temperament/behavior way). My one vet, who only has cats as personal pets, consistently jokes --her exact words--"If I ever get a dog, you're picking it out for me! You have the nicest pets!" Now, she references "picking out" over "training", so I assume she's thinking genetics. But then why haven't I had a bizarro pet yet? Trust me-- on some I did not know what I should've, although I've always used common sense.
The thing is, I totally see genetics-- and I agree. But am I just that lucky to pick out 8 animals that are awesome? Or have I unknowingly "helped" in some way? Honestly, I've never had a fearful animal. Ever. Or aggressive.
Interesting thing to discuss. And I see (and believe completely) others who DO have genetically fearful or aggressive animals, so I know it exists but I sure wish my "luck" would extend to other areas.
Like the **** $550,000,000 powerball lottery tonight, sigh.