i had too much sugar one day, and when i was going to bed, i started hallucinating.
That day, I had gone shopping with my girlfriend. Out of no where, people's shapes started appearing. I saw cloths spinning above me, and I kept trying to get them away. I was awake, but my subconcious was overpowering my concious. I'd be able to shoo them away for an instant, and then everything would come back. It was really loving trippy.
Also, another time when I was younger, a similar thing happend to me. Except I rolled to my side, and there was a man with a knife walking towards me in my door way. Holy stuff I couldn't tell you how loving scared I was.