You never can be too careful... or can you?
Apparently, you can. Fenway the year-old German Shepherd doesn't like the look of the dog she spies in the mirror in this video uploaded by user KJ Pelletier, and she's doing all she can to alert her family to the danger. Problem is, the dog keeps barking back.
Watch Pelletier's "guard dog in training" take on the intruder in the video above. It's a case of major mistaken identity.