Ok, noted, I have toned down my comment.
But I would be seriously pissed off if someone climbed like a bat out of hell into my prop from a blind spot and nearly killed me and possibly my family because they didn't see me....when they didn't need to climb like that and hadn't got "the big picture", and may have been doing it "just because they can". Sure do it, but make damn sure no one is in the way.
I'd also be well pissed off if someone I knew was killed by someone barrel rolling at 50' because they wanted to show off to someone on the ground....like has happened before.
I am just going by comments previously posted, and I apologise if this transpires not to be the case, but from what has been posted the RV climbed as fast as possible into the DA40.