Mindset of an Animal

Either the person being feral or having a fearful mindset that you want to trust someone but you can't worried about the malicious outcome of someone lending a hand.

Example one: The way he\she\it lives looks unkept, such savagery he\she\it has a mindset of an animal.
Example two: The way this person looks and staring me down like I'm someone not trustworthy, even after helping the person doesn't look at ease maybe cornered like he/she/it has a mindset of an animal.
Won't even trust me if that person wants to...