We have gotten a new dog recently (our first) and she's pretty well trained already. She's 4 yrs old. However, she's had an accident in the house. We did as was recommended, take her out and clean up with odor remover etc. The issue is that we don't completly understand why she had an accident when we took her out frequently through the day. We noticed that she likes to go to the same spot on our yard but lately she hasn't been going because she seems tense about our neighbors dog. She starts tugging on the leash to go towards their yard or might even growl a bit bit doesn't relieve herself even if its been hours. We're thinking maybe take her further away from the neighbors yard where it isn't visible? But she already marked the spot she likes to go to. Any opinions? She seems anxious towards the neighbors and doesn't relieve herself when we go out. Also, how much water should a dog have? We think she doesnt have that much. Thanks a ton.