It often happens that, trying to be nice and helpful, we actually do harm to the things or people we truly love, and our pets are far from being exceptions. You must have met those dog owners whose pets have very little idea of healthy balanced nutrition, regular exercises or walking, not disturbing the people and such. Guess why it happens? Because it's us who tend to mistreat them being absolutely sure that no one can take better care of them than us. And here's a dozen things almost all of us do unintentionally, but... let's say we'd rather not!