I would like to see a video of this possible. Oscars often do have mad moments. I think it's virtually impossible to say why your fish is doing this. Do any of the other fish react funny when your Oscar is doing this?. The reason I say this is because it has been known for faulty heaters to introduce small currents into the water which can electrocute the fish slightly making them jump all over the place. I've only read about this, never actually seen it myself so I think it's probably very slim that it is happening to you.
Just check your water and make sure that's all in order, fish could possibly act strange if the water is in poor condition. I have seen my Oscars chase after flies that they can see outside of the tank, they often jump and bang themselves when doing this. r thing seems in order and you can't find anything wrong, I don't think there's much you can do really. Maybe someone else will have an answer for you because I really don't