My mom has two dogs, and I have one. Though they always get the same treats, they each try to snatch food when it’s being offered to another.
For example, I had all three sitting down, and went to give a treat to the oldest first. The middle went to take it from my hand, so I moved it away and pointed the middle further away. Though she did listen, the youngest tried to take it when I offered it to the oldest again. We’d like them to wait their turn so they don’t feel as rushed to take it, as the oldest two sometimes bite fingers on accident.