A dog that bites silently. [An insidious tradcuer. He would kill you with an air-gun.]
More Italian Proverbs:
There's no fool like a learned fool.Italian
What costs little is little esteemed.
Italian
The end of the corsair is to drown.
Italian
Thank you, pretty pussy, was the death of my cat.
Italian
There is no robber worse than a bad book.
Italian
Who has no shame all the world is his own.
Italian