Do you guys ever experience the glitch in real life? Like when you witness something really happen, but it's not or unknown.

Before I active in PC I ever read about this in an articles which now I forget the link and title.

Some times ago I find similar threads in reddit again: http://reddit.com/r/Glitch_in_the_Matrix
It makes me wonder if there any "player" mess with our minds. Or does the other dimension truly exist and somehow they cross the path? Or do our minds just playing tricks?