Dream of caught

In my dreams i saw a very small white puppy coming after me wherever i go and i am getting scared of him.. I went inside the bathroom and he came inside my bathroom through the gap under the door.. He was not ferocious but i am generally scared of dogs and so was with him.. The dog tried to bite me and caught my two fingers with his teeth..i thought to kill him then and there and i held his neck from my other hand since first hand was inside his mouth and i started pressing his neck.. He pucked yellow and then black and slowly he is dead and i see his blood all over in the bathroom and then i clean it and am releaved too..