Ok, now that i think Ive gotten over it i shall tell you the story...
About 2 weeks ago i was on a newly started and unexplored server with a very good friend of mine, no one was on the server because it was an American server and my friend an i are Australian.
So, we decided to go and explore over the ocean to find some more land to build a sneaky faction base. We were casually bobbing/ running through the ocean when we discovered an Island. So, excited that we found our new land we ran onto it as quickly as possible. Walking across the sand we got to a forest, looked very normal until we came upon a bunch of items, like the pile of items you leave when you die. Curious, we picked it up, it was 64x3 of leave blocks, 4 mushroom stew, 28 iron blocks and ender eye.

This is when were started getting suspicious. Our faces started to look like this --> .We continue further and found 2 wooden doors. Facing each other like a normal double door. Nothing holding them up or anything, we go and swing them around and they remain standing.

Now officially scared, we stay very close and started to climb a mountain, this is where the freaky stuff began, we would climb and then start getting hit randomly, they weren't just half a heart attacks, they were 3-4 heart attacks, we would be left on half a heart, fully recover then be hit again. We both looked around and saw nothing that could have possibly attacked us and it wasn't starvation either.

Once on top of the mountain we looked around and saw a lot of biomes close together and separated very strangely. We had Desert and dense forest right next to each other, Massive Stone and Desert, and Swamp to stone, as well as the obvious ocean/beach.We seriously looked like this --> . Scared, with night on its way we decided to set up a small camp to continue exploring afterwards. Both of us checked our inventory and noticed things were missing and more stuff had been added, keeping in mind everyone else would have been asleep and not messing with us via console.

Very Scared and clinging onto each other, one of us quickly logged off and changed to an x-ray texture pack so we could see if anything unusual or any mobs around us. of course, twas my dear friend who did so, I'm left in a dirt hole with one torch, still getting randomly hit and scared to death. He comes back and we wait for day.

With day upon us we bravely continue exploring. Due to the random hitting me both end up getting thrown off the mountain, that god, for landing in a strangely deep lake to the side. We swim out of the lake, and head into the desert biome to explore some more. and we notice very strange holes and ditches... ones that would have been caused by TNT, my friend said that he hasn't seen any sign of a possible base anywhere. Scared we continue on only because we are curious to see whats going on. The random hitting seemed to have stopped after we climbed onto a huge sand dune.

We continue walking into the never ending desert until we come across some bedrock, randomly placed and a la very strangely placed river. The river had very oddly placed sand, showing massive ditches and pillars of sand within it and more TNT explosions.

<-- facial report.
Literally crying from being spooked me continue on searching and come across a sand stone wall, with the random leaf blocks in out inventory we make some stairs up, it was when we finished the hike halfway up the wall we were disconnected from that server. We both agreed never to return to it.

About an hour or so after it we both said we heard odd noises, like ghast noises, screaming, enderman and all sorts of whacky things. This is what scared us off minecraft for a few good days.

Enjoy.... e.e