Is it possible to knock yourself out with your own intentional punch?

Even though, this is probably the dumbest possible thing to do but if you punch your own face intentionally, can you knock yourself out? I ask this because your body/brain is anticipating the punch and your body/brain will know the magnitude of the punch. Because the majority of KO punches are unanticipated and the victim will not know the magnitude/strength of the punch therefore unconsciousness.|||Try it and tell me.|||try it and let us know|||Why do I suspect that you tried this before you asked this question ?|||I guess if someone is really, really stupid - it's possible.|||no|||I think it is possible if you hit yourself hard enough and on the right spot because if you hit yourself in the right spot it doesn't matter if you anticipate it.|||yes you could say it would be possible because almost anything is possible if thought of. I can say that if it happened to me I would be so embarrassed and probably not show my face for a good while. I'm just too hot to be humiliated like that hehe!!!