I have not had any weird experiences i can't explain, but my dogs have them all the time.
I spend a lot of time in the woods at night coon hunting, and you see a lot of crazy stuff in the woods at night. Yellow jackets do not like bright lights shined at them, for one thing. I have had a coon try to run up my leg a dozen times. I've had freaky encounters with eyes looking at me that turned out to be those bright eyes tacks (I hate those things, they scare the crap out of me at night). I've run up on a trail camera or two and got flashed - that will stop your heart for a second.
My older dog is a half treeing walker / half cur, and when she was a year old I hunted her a lot by herself. She is the spoookiest dog I've ever had and she gets spooked a lot.
One night we were hunting in kind of a piney woods area that dropped off into a bottom and she was going along right in front of me and she stopped and went rigid looking in one direction. The hair on her back stood up and she was growling at something. In just a minute she lit out after it bawling constantly. Normally she runs coons with a choppy squeal, but she was deep bawling on this, and she ran almost out of earshot before turning and coming straight back at me. Buddy, I was clenched up and had my 22 pistol out and off safety as she got closer and closer, and eventually she just shut up - sounded like a 50 yards away, and after a minute she came trotting up to me in the dark like nothing was wrong. I have no idea what she was running, but it had me spooked.