Cane Corso Mastiffs are very protective, no matter the potential cost to themselves.
http://www.youtube.com/shorts/-1YhofDJa_c
They also seem to react with military precision.
http://www.youtube.com/shorts/TvT9ybhMiaA
But, as for "Black-faced Uga" ... well ... he'll jest fart and hope the noxious fumes will drive away the intruder, don'tcha know! Of course, that's when Bevo has to ... uh ... "step in" to save the day.