Brutus will chase only Molly my black lab out of the room. He is fine with everyone else by his food. Strange. I never feed him and Frankie together just to avoid any problems.
I voted YES because if somebody else feeds the dogs that they're not familiar with - they will get aggressive and end up fighting.
But, with anybody in my family including my brother's family who is our go-to sitters, they don't get aggressive even if we yank raw meat out of their mouths. I can pretty much tell any of the dogs to "drop it" while they're chewing on a chunk of meat and they will do it.
If my brother can't take care of my dogs, we request the sitter to feed them in their kennels with the door closed.
I put other, cos Brie is to the other figs but not to us. We can add food, take away food, stick fingers In The bowl etc n she doesn't react. But if one of the other dogs even acts like they r interested...her Rotal heiny emerges