Ursa

I was playing a nice, relaxing game of survival minecraft. I was mining, and I was breaking blocks. I broke a few blocks, and then I lagged back.. I was confused at first, but just ignored it. Then, after another few seconds, I teleport back to where I was mining. But when I realized where I was, lava came from above and killed me. I lost all my items, and it said my bed was missing or obstructed. I spawned in a taiga biome, with a biome beside me. I explored the village, and saw a transparent shape looking at me from the trees. Then,  my minecraft just crashed. I loaded it back up, but it kept crashing everytime it started to load. I decided to go onto youtube, but my minecraft opened back up.

I played it, and it all seemed normal. Just then, I heard creepy music. Suddenly, some of my textures started to disapear. Within minutes all the mobs, items, hot bar, sky, trees, grass, and houses were missing textures. Then, something stated to walk towards me. It had missing textures, but was transparent. I realized that it was what was causing all of this. Then, it walked towards me and punched me. Then the screen glitched with symbols, steve faces, static, and just glitches for around 5 seconds before crashing. I went to try to play it, but it had uninstalled itself from my computer. All it left behind was a .txt file that said "Don't come back." I tried to delete it, but it just... reappeared seconds later. I decided to just stop playing minecraft, and I haven't been bothered by anything like it ever since.