There is a couple things most people don't realize about the dogs they get as pets.
Dogs are meant to be social animals and being alone is very stressful for them. Certain breeds do okay alone, but if you have to have a dog and leave them alone, get 2 dogs and they will be much happier. People get a dog then leave it alone all day with nothing to do and nobody to see and wonder why it gets stressed and behaves all crazy.
If you are going to have dogs, you should really consider making them part of the family, (unless they are specific working dogs), have them live in the house with you. They will be much happier and much less likely to have issues if you have them inside with you at night and when you are home. Also if you give them plenty of physical exercise and mental stimulation as well as good food, and a schedule, may breeds will be happy and sleep a large part of the day unless a cat, rabbit, rat, squirrel or other dog or human alerts them.
Some breeds, especially a lot of the "toy" breeds are neurotic yappers and if you get them, no matter how cute they are to you, everybody will hate you for it.
This is damn good information and I can tell you that you'll also have a much better dog. My setter NEVER leaves my side, he goes everywhere I go unless it's too hot and he has to stay in the truck. He IS family. If I'm upset, he knows it. If I'm angry, he knows it. He brings me what I need sometimes before I know I need it, or to let me know he needs something. He can run like a bullet but will stop and recall when I say. He's had the very bare minimum of training; sometimes training "just happens" over time, especially if you two are together for five years plus. Amazingly smart animals but you'd never know that unless you spent a lot of time with 'em. My dog is my buddy. My "wife" took my 13yo. Cocker, he's old, blind, deaf and only cares about her; I just hope he's not being left alone because he can't handle that either, goes crazy. That's another thing, dogs pick their owners --let the dog pick you. I picked a different setter but this is the one that stayed by me while the rest ran around and played, so I took him instead.
Now I have a cat too, rescued her from a parking lot, abandoned. She doesn't mind staying at home as long as she has food and some water. She comes to you when she wants attention. She doesn't make noise or do damage. Still, cats need attention too, but if you don't have the time during the day, get a cat. They're great companions too. I didn't like cats until I realized I really like cats.
If you don't have time for a pet, don't get one. Especially a dog because like W54 says, they are social animals. It drives 'em crazy, literally, I've seen it happen and I've seen amazing dogs ruined by leaving them outside, ignored. Some breeds do better than others too, it's important to get the right breed.
Just never blame the dog. They are innocent, incapable of malice. They learn better through positive reinforcement too, especially dogs that are very sensitive like this setter. If he even thinks I'm angry, he hides. There is no need to ever escalate from there. No, I always blame the owner of bad dogs, I deal with the human when it requires negative reinforcement.
Some people just do not know this and it becomes incumbent upon us to teach them. It's the neighborly thing to do. Most people will accommodate IME; the ones that don't, well, they can be made to.