Sadly, it sounds as if this dog has been subjected to abuse in her past – by a bald man. It also sounds as if she was not exposed to other dogs, or if she was, it was only to be victimized by them. If you cannot provide an environment where she can be safely confined in a home without either, where she can be insulated and kept from harming anyone, the best thing would be to have her put down. This is the hard part of rescue – finding out that a dog has been damaged beyond the point of real rescue. A dog such as this is living in constant fear each time you take her anywhere, and you should keep her in since you cannot keep her from harming others. There’s nothing in it for her, anyway. A biting, growling dog is a fearful dog – and that is not a quality life. If you have no option that will give her that, it is better to give her peace, and go rescue a dog without those issues – there are plenty of them that get put down each day, for lack of the foster home she is in.