Well in Australia that IS the case. My brother had that specific scenario.
Synopsis:
Uninvited person forced entry to the premises, dog woke up, dog alerted my brother that someone was on the premises by causing them to yell loudly and bleed profusely, my brother woke up, called police but neglected to inform the dog that he was awake and that it could stop.
Police arrived, called an ambulance, called the local city council ranger (dog catcher), called the whole thing excessive force. The intruder successfully sued my brother for damages!
Recently in the media here, have been a number of cases of business people protecting themselves/property with firearms (rifle or shot gun as hand guns are pretty much illegal for joe public) and being arrested for misuse of a firearm. the did not shoot the intruder, just fired a warning shot or two.


PeterH
" 'tis better to be silent and thought a fool than to speak and remove all doubt"