I think all dogs have the potential to be vicious...its instinct, we get off days and so do dogs.
That said i think all owners should be responsible for the pets actions....I have a rottweiler cross who has been raised with my youngest who is now 2.
I say that Bella is the sofest dog, and would never harm a fly...but! I would never leave them unattended.
Firstly a baby shouldnt be left unnattended with or without a dog present.....secondly , because even if a dog means no harm, can cause it unintentionally.
^^ok how many typos???