Quote Originally Posted by kalinka_vinnie
I have heard Russians say хорошая собака, but never "bad dog" as in "You bad dog, you ate my thesis!!! BAD DOG! NAUGHTY DOG!" etc.

Плохая собака sound a little weak in my mind. Is this the normal set expression for discontent with you dog, or is there another phrase?
Поганая собака (типа ругательство )