An Instagram clip shows Ellie copying brother Leo’s nose-boop alert on their owner’s thigh after seeing him get treats. Leo learned it at a service-dog school but did not graduate; the uploader says he now alerts only when he needs service.
The clip ends with the owner giving a treat to a third dog, Oliver, who appears unaware that Leo and Ellie have been alerting for rewards. The post had received more than 610,000 likes at the time of the article.
