Not a KO, but something similar. A strange head kick... I remember feeling fine, no sound, warm, light... I was feeling fine, I guess... I was falling like slow motion.... I could feel that I was going down, hit the mat, and then the image came down with me... It was like a delay from what i was seening. Aster that I stood on my knees, and all of a sudden the sound came back, the guys in the gym were like, dude are you OK? ... I didn't feel no pain at all. The coach told me that the next day my head will hurt bad... But it didn't..... That's the only experience of this kind of KO I ever had....