I totally agree with you. Most of my Deja Vu experiences has been about I know that I haven't done before. One example was at a golf-tourney. I was at the first tee, and I managed to bearly touch the wall, which rolled 20 meters while many people were watching. I mean, its something which never happens, but I am pretty sure of that I have dreamt it before. I often dream about playing and weird situations, so I am pretty sure of that it has been in one of my dreams. Anyhow, I got a deja vu feeling in the moment when I realized where the ball went and saw the shocked faces on the players around me, probably because of my cursing.

Anyways, you got a real good point there, never thought of it before.