Goodness! Nicki's daddy was a Mastiff... we've always said that if she wasn't raised by us, and was raised by someone else who wasn't as loving and doting as we were that she'd be a mean dog. No kidding. There are times she shows an aggressive side, and I know without a doubt that if she didn't know the devtion and care she's received from us that she could have turned into a mean dog. Luckily she has been raised by us and is now the sweetest most gentle dog around. But there is that tendency in her that I see every so often that makes me a bit leery of what might have been if someone else took her instead of us.

Shows you to always take care of your pets, no matter what. If it is a chemical imbalance in the brain, she should have taken him to the vets to see if somethign could have been doen to correct it.