The important stuff
There are two dogs in my life, and they are both very good.
Australian Shepherd
Maui is my Australian Shepherd — relentlessly smart, impossibly energetic, and deeply opinionated about where he should be at all times (usually wherever I am, preferably on my feet). He has also figured out that I leave the house at predictable times and positions himself near the door well before I typically head out. I have not proven causation, but the correlation is suspicious. If he had a laptop, he'd have 47 tabs open.
Golden Retriever
Ralph is my Golden Retriever. Where Maui is precise, Ralph is approximate. He has one setting: open. He greets every person — guest, delivery driver, stranger visible through a window — with the same wholehearted enthusiasm, as if they are exactly who he's been waiting for.
Between Maui's intensity and Ralph's ease, they make a pretty good system. High throughput, good fault tolerance, zero latency on affection.