Wow, good thread.
Shark about 20 feet (away), while surfing at Cape Hattaras.
BlackBear 20 to 30 ft. in Great Smokey Mtn Nat park.
Came back from taking a pee, there he was, raiding a cooler at the next campsite up. he looked at me like "Got any kethcup?" , I did the slowly move away toward the Jeep thing. Unfortunately they had gotten to browsing camper's food because people weren't careful. Hope that's been fixed, I think people are a lot more aware nowadays.
Rattlesnakes at Devils Tower WY. Climbing rocks at the base, and hiking around, you step on a rock and hear a sound like faucet water running...shhhhh, it's a rattler under the rock. Saw a few there too. 10feet away. Verified with park ranger, he said they are all over that place.
Buffalo at Yellowstone. 25 feet? Too dammed close. We knew they were there, they knew we were there. they were grazing alongside the road by the lake. We got tired of watching them, started talking, shooting the breeze, next thing you know instead of being 100 feet away, or more, they had grazed on down toward us. Went for the car fast!
Year prior my buddy was camping there, and witnessed a lady get gored to death, she just walked right up to one like it was a petting zoo, and it laid her out. My buddy admits he's not positvie she died, but he said it was pretty bad, lots of blood. If they get rattled they'll come for ya.
Here is my paintball story. We picked a new place to play back around Y2K, Fall. about 10 acre area, thick brush, trees, etc. One of the guys we play with is sneaky, and he will crawl thru brush and be found in the dammdest places. I was guarding a trail and moving toward their base when i heard a little rustling to my right, in the thick brush. I crouched, aimed in that directionand kept peering through trying to pick up more sound or maybe a glint of metal or see some fabric. Nothing. Just then, an acre or so away, a gun battle broke out, the sound of several piantball guns ratatatatat.
The rustling in my area became loud and I figured a player was coming right at me, I was ready to cut loose on him when a dammed full grown whitetail deer appeared bounding out of the brush...I'm falling backwards, firing wildly while this deer is freaking out and damm near bounded directly overtop of me.
(It actually went over my left shoulder area). Talk about an adreneline rush!!
So, deer, a couple feet away at most, thank god he didn't trample me.
I looked for the orange painted deer the next couple of days, but never spotted him. I am positive I got him on his left flank.
GroundHog. Summer, I walk into my shed to grab something and there is groundhog scrambling across the wooden floor!!! 5 feet away? less? easily.
I scared him, he scared me, we danced around each other but I let him have a wide clearance. I went more toward the back to give him a clear shot to get out the door. He scrambled out, I went to get a beer to calm my nerves, he scared the crap outta me!