This dog could give you a feeling of consternation.
The definition of consternation means fear that makes you feel helpless.
An example of consternation is what your neighbors might have if you get several large barking dogs.
a feeling of confusion, helplessness, shock, or dismay
Origin of consternationClassical Latin consternatio from consternare, to terrify from com-, intensive + base akin to Classical Latin sternax, headstrong, restive from Indo-European base an unverified form ster-, rigid, stiff from source stare, strenuous
A state of great alarm, agitation, or dismay.