Why did we get a dog again?

Ok, so having a dog has had its moments. It's fun to see how excited she gets when we come in the door. She's a snuggler. Seeing her curled up in the sun is just plain relaxing. But here's when she isn't fun . . .

At 4:30 in the morning when she decides to start barking
Or at 1:30 a.m. That's not fun either.

When she eats half a bag of dog treats and then needs to drink a gallon of water the rest of the day, so much so that it basically leaks out of her all over the house

When she starts vomiting LIVE worms at 8:15 p.m. Thank God the vet is open late.

As I'm sitting down after a long, single parenting day with a cranberry Barcardi Breezer, a bowl of popcorn and an episode of Psych, and in the second it takes me to turn off the light she has her face in my popcorn and is INHALING it.

When we're still finding poop on the stairs, even after taking her outside 15 minutes. Seriously? It was so urgent that you couldn't tell one of us you had to go, even though 15 minutes ago you had a perfect opportunity to do that in an appropriate place?

When she has learned from the dog we're sitting to bark at us AFTER we walk in the door. We're here. You know us. Why are you barking?

When she knocks over a glass of cranberry Crystal Light onto our white carpet.

I know, right now you might be thinking, "Aww, but she's just a puppy!" Yes, but if we don't do some serious training, I fear this is the kind of adult dog we will most likely have as well. Just like with kids, they don't just "grow out" of everything. Lately the responsibility of having a dog has been weighing on me, and I'm struggling to remember why this was a good idea. Anyone care to remind me?