Here is something I learned with dream animals. I will not mention specific animals, out of respect for their mystery teaching.
When an animal who has teeth, claws, horns or other predatory tools appears in my dreaming, in the first dream, I run in fear, am often caught and seized, then wake up, thankfully, before it gets really painful. In the second dream, I am ready, and fight the animal until I vanquish it. Then, I wake feeling remorseful, and resolve to make peace with the animal at the next opportunity. Sometimes months later, it happens, and I am ready, to embrace the predator without fear. I have shared warmth and grace with some interesting beings this way.
This is not hard to do. All it takes is your peaceful intent, no matter how fearful you might feel about the next dream. Just voice your intent for peace, and trust the dreaming.
If I stopped with the first dream, then I imagine it would feel like negative energy, and it might even repeat, as many of them have, until I "got it".
After all, they are just chewing on my ego, their teeth are a gift to clear my sight.
Blessings,
Aronaya