Well, evil, I believe can be felt, recognized and seen. Recently I was told to apply for some low income housing. The place was close and had a unique building. But something told me "Don't apply, stay away"
Turns out, this place is very questionable regarding safety, care and concern. In fact, one resident was so taken with a caregiver, he'd get her gifts and she was a good friend to him, but this didn't set right with another.
So, he waited till they walked in, shot them both and then went to his own apartment. This wasn't common, but fights and such are as I found out.
At various times. I met people who I surely wanted to punch out. It wasn't rage, but that "They're not really bad evil, but they're mean and selfish" I'd learn later, some beat their wife, kids or animals.
Once, standing with my bil, a pair of Sikh walked by, his dog let off a growl and I was stunned. He said "She knows evil better than most people"
That dog was just a typical mutt, but some I've found, seemed to know bad people just by their existence.
However, animals also act oddly, but there may be a reason, I submit the following video.
https://youtube.com/shorts/OkI9ftwjUt0?feature=share