Thanks for the responses. With regards to taking both pups for long walks, I plan to start that soon. They have a lot of room to play inside, but I live in Chicago, and it's been very cold and we've had snow on the ground until the end of last week, so I've been hesitant to take them outside as pups in those conditions. We've been around 50 degrees now pretty steadily for the last week or so (but you never know here...we've had snow in April before, nothing phases me anymore hahaha), so I figure now is the time to actually housebreak them and get them used to going outside both for going potty and for walks. I will likely leave a pad down in their play pen area (we've been keeping them cooped up together instead of in separate crates...they bark ALL NIGHT if we do that, they like to cuddle up with one another and it seems to make them happy
).
I may start feeding them in their crates though...hopefully, Bruiser will then get the point that his food is his, and Rocky's food is Rocky's, and he can't have both bowls of food. Regarding the aggression with food and toys, he is downright scary. I mean, I know he is only 4 pounds right now, but I jump back because I'm afraid he'll lunge at me. They do gnaw on things they shouldn't, and I get that they are puppies and it's normal, but he is actually coming at me/Jake/Rocky (while he's eating) with the intent to bite.
Any suggestions on obedience classes? Are there ones specifically for Yorkies/small dogs, and if so, is there a website that lists them?
Oh, also, they were taken at about 10 weeks, from 2 different litters (same breeder), so I'm wondering if it has to do with genetics as well.