I find rats to be so much more time consuming than dogs, but then my rats get a heck of a lot of fussing over, and not to mention all the health issues that rats are prone to. I'd agree that indoor dogs and puppies are especially time consuming and need a lot of walks etc. Dogs with large back yards plus more than one dog for company are low maintenence from what I've observed and experienced. Okay speaking generally of course. Maybe it's a cultural thing, in Australia crating dogs or keeping predominantly indoor dogs is unusual practice but seems more common in the US and Canada (correct me if I'm wrong), the majority of dogs run or loaf around the backyard all day while their humans are at work.