Oh boy littermate syndrome 🐕🐕 Most people think it only comes into play when you get two dogs from the same litter…but that ain’t right. Any two dogs (or more) who spend a ton of time together in their youth can develop a co-dependency that can cause separation anxiety, depression, aggression on reunion, and complete disregard of the handler. That’s not to say you can’t do it. Plenty of people do. But you have to be highly intentional about building a relationship with each dog and conducting training, crating, potty slots separately. Build the relationship first BEFORE bringing them together all the time.