(who's bigger? my aunt or Oso, the great pyranese?)
I remember growing up with dogs. First was Alice, the golden retriever. She ran away. Then, on my 6th bday came Brutus.. my best buddy. He was a cute, little pekanese / beagal. The most recent was Dobby.. a full beagal. He was the only one I had to pay for.. and he was very expensive! 3000 php, about $60 usd.
Here's Dobby looking guilty for destroying many a chair..

I learned that French Bulldogs make good guard dogs. I will most likely get a small dog as I will be travelling or living in a small house or apt.
(from google search)
or how about a larger, more intimidating and powerful guard dog? (for when I settle on some land)
(cane corso - google img)

(American akita - google)