[observer]

No, she's not saying that all Chihuahuas are yappy and dangerous, but is saying that the yapper she spoke of is more prone to biting than her Rottie is.

The Chihuahuas I've known have not been the most kid-friendly dogs (although I'm sure there are some that are), but I don't think the OP should get ANY other dog just because a six year old is begging for one. And, I agree that reputable Chihuahua breeders would be very reluctant to place a puppy under all the circumstances of this situation.