I was using the computer one night just reading the news, slowly a strange feeling crept up on me and I felt as if I was in a different world. Then demons started crawling out of monitor growing larger as they got through. They were very unpleasant and definitely coming to destroy me.
I have no idea how long this went on as I blacked out or something similar, after some period of time I blinked and everything was back to normal.
Nothing like this has happened before or since.