I am thinking of buying a dog. My wife and I live in an apt. Thus, I am thinking of a small dog (< 10 pounds). Any suggestions? Also, we are both extemely busy. Although I love dogs and would him/her as often as I could, I don't think we could committ to walking every day, twice a day. Are any dogs able to be trained to go to that bathroom inside (on newspaper in a corner, for example)? THANKS!