Well, I have seen, and experienced some 'weird' stuff in my time, but I expect most of it could be explained away, 'naturally', if we bothered to investigate it thoroughly.
Like Locutious said, it is more likely to do with the limitations of our own awareness.
I once had a neighbour with trained attack dogs, scary dobermans, which he warned against ever approaching, like, if we kicked the footy into his yard, do NOT try and retrieve it, because they will attack.
Anyway, one day I was wandering out to put my socket set back in my car, after fixing a tap, when I heard growling, I looked up to see one of the neighbours dogs had got out, and was crouched a meter away from me, ready to leap up and rip my throat out.
I froze.
Instantly I thought, sh1t, this dog is gonna rip my throat out, then, still frozen, showing no external change, I thought, if this mongrel moves, I will smash his skull in with this socket set.
The instant I changed my thought from fear, to aggression, the dog stopped growling, sat, looked at me for a few more seconds, then turned and walked away.
I always thought that it was the dog's intuition which let it know that I had become a threat to it, but if we examined it closely, it was more likely that dog's abilities to read body language, etc. showed the animal my intent.
I think for we humans, similiar things happen at times, but we don't analyse why we feel like we 'know' some things.
May i venture, that perhaps the dog wasn't picking up so much on your new aggressive frame of mind [which the socket piece in your hand engendered], as much as your sudden