A pard's GSD did something similar in Houston...

Dog at home, doing her job...guarding the house...bad guy breaks ground floor window...dog waits quietly..

Bad buy sticks his head in...120 lb GSD grabs him by the face and pulls him inside for a thorough azz-kicking. Blood and schitt everywhere, coffe table shattered, glass busted etc...
bad guy manages to get away...

My pard comes home, finds a REALLY happy dog and a REALLY big mess and calls the cops....the perp was quickly found in the local ER...checked in for repairs grin


"...the left considers you vermin, and they'll kill you given the chance..." Bristoe