My aunt has two chihuahuas from a reputable breeder. One is an angel, the other is vicious. I can't and won't go near this dog without some sort of protection between me and the dog. This little toothy shark can do serious damage. I doubt however that a pack of chihuahuas did any harm to a person who was standing and had full lenght pants on. As long as you keep fingers and face out of the chihuahuas' reach you'll be alright. This lady sounds nuts, but it also sounds like she takes care of her dogs, and that's what counts.
Corinna, did you read my siggie?, According to many people on here, its fine for show breeders to breed purebred dogs all they want with no concern for the byb dogs in shelters. This lady is concerned with both so more power to her.