it came across my mind today. i love to walk phoenix in the big field, let him run off leash until he gets tired. he also lets me know when he has to go out.he barks. sometimes i even ask him if he wants to get out, and he understands...he barks.in a certain tone where i can tell the difference between barkings, whereas my husband wouldnt. anyways.....i never had a puppy that had to be potty trained. isnt it hard for someone who lives in an apt. lets say on the 12th floor, to keep a puppy??? how will they ever learn to go out to pee? i feel like by the time u even get to the elevator its too late..