Dogs waited longer to approach the rewards when the experimenter had withheld them intentionally than when she did so unintentionally.
This finding stood out to me because it shows that dogs can recognize the difference between a person choosing not to give them a reward and someone who cannot give it. That means dogs pay attention to human intentions instead of only reacting to the outcome. I think this is important because it provides evidence that dogs understand more about human behavior than many people realize.