Buying a trained guard dog

[Phteven]

From a professional perspective......
I would never advise a client to get a guard dog to protect their family unless they wanted to pay for a handler as well.
For the really paranoid we generally suggest a well set up electronic system including CCTV, motion detectors, zoned alarms, external lighting, panic buttons and back to base monitoring.
Overcoming these things is much harder than shooting a dog.

There are also numerous tweaks that one can make to the built environment to make your home less intruder friendly.


ETA - having read the thread I believe that several people with experience with guard dogs and German Shepherds have indeed replied and the overwhelming consensus is that they don't believe that your children will be safe.