Yeah, they have extremely simplistic cognitive skills and are extremely repetitive, though they display a sense of consciouness and seem to know they are there. However, their loud barking and inability to remember being told to shut up (extremely unimpressive) and being able to learn what they should and shouldn't bark at can really PO me and makes me imagine kicking one, though I wouldn't do it. However, the ones born in the wild have 1/3 more intelligence than domesticated dogs, though it probably varies from each species of dog and how closely related to normal wolves that they are. Also, it's a waste of money to own dogs, I feel, though I sometimes have a soft spot towards them and I show them attention, but I prefer very small ones and only one if I choose to have one. Cheap and cute.
Ironically, I feel I need to go tell one of the dogs out there to shut up (family's dogs). She still spins around a lot and she is 3 years old or so, probably from lead poisoning from a toy as a puppy. I don't know. Chemicals are definitely not good for creatures with already miniscule intelligence levels.
If I someday move out on my own, I won't get one.
Edit: Seems that she shut herself up before I finished this post.