bfrancis - I'm sorry you took that as a person attack, as it was not meant to be one.
The sushi analagy was obviously not the best one to make my point, perhaps I should have said that after feeding guts you should not let the dog lick you if you have an open wound....
I used to feed my dogs raw meat, it was a personal decision and I did a lot of research into it. There were many people who objected, and one of the most common misconception non-raw feeders would have was 'it would give the dogs a taste for blood' and turn them predatory. Now - I fully agree with you that some dogs will chase and kill anything that moves (the majority of mine would), other dogs you'd have to put something in their mouth and step on their jaws to make them bite. Every dog IS different, you are absolutely correct. However, dogs are unable to make the connection between guts outside the bird and guts inside the bird - they smell nothing alike from the outside. Now, if the dog goes and kills a bird and realizes it is a tasty object, than that is a different story and not at all related to the pile of guts they were fed last week. This is not just my opinion or experience with my personal dog, this is the experiences and research of thousands of 'prey model' feeders.
As I said, you are absolutely correct in that any dog has the potential to kill and eat a bird, however, my point was they will not kill a bird because they enjoyed the scraps and want a second helping, they will do it for the chase and the meal at the end is an added bonus.
Again, I am sorry that you took that as a personal attack.