Huurrphhh! Have you people not seen my avi? What is the meaning of all this chihuahua bashing? Have you no shame, Sir or Madam?
The truth is, they are pretty good dogs, if trained. My problem is, I have 4 untrained versions. They aren't bad yappers, but have a bladder the size of a cashew. The only upside is, they will go apeshit if someone comes into your yard, and you can keep your house like an icebox at night if you put some in the bed with you. They are like 5 lb radiant heaters. Downside? Shedding, peeing, pooping.