What's up with the dog that eyes people who approach his food bowl or stiffens and even growls, snaps or bites if others interrupt his meal? Don't they understand that you're the provider of the things they want and not a threat to them?
Like many dogs that are otherwise easygoing, this type of Fido has a food fetish, and he feels it's his duty to guard each bowl as if it holds his last meal.
So what can you do? Instead of teaching Fido that mealtimes will be a fight and that his fear of having food taken away will come true, train him to...