ok, proof please of a dog attacking its owner. bearing in mind that the dog has to be raised since a pup by this owner. I know that you wont find any cases. It doesnt matter if an animals species are wild, if that animal is brought up in a domestic environment it will act in accordance. Animals arent stupid..
I know personally of someone whos pet dog attacked them randomly. So there goes your theory. Animals are not stupid, but they are not particularly intelligent either. They follow instinct. If an animal that has been domesticated for thousands of years can turn on its owner, I'm pretty sure a wild animal can too.
	
 
 ..handy deterrent to future annoyances I think.