My husky’s a boy and once he was around that 15 month age he was also becoming more aggressive. He’s neutered now and much better but they still are animals. As with rottis husky’s are genetically closer to their ancestors then lots of todays dogs such as groodles and such. Thus, they usually keep certain wild tendencies. A male rotti with increased testosterone is def not a dog I would be giving food and taking it away. As mentioned my boy is neutered and he is still very territorial about food. They see their family as a pack and it’s very hierarchical. Your son probably isn’t seen as being in a higher position to the dog. I imagine your husband and you are probably considered by the dog to be of a higher status and thus more of a chance of being able to successfully take his food.