Danmcq, do not worry. I don't think swatting a bird out of the air is that bad. I mean, yes he did get a broken wing once from that, but it was nothing that a trip to the vet couldn't fix. Atleast it is better than the black eyes he regularly gets due to being smacked for bad behavior. The point is, he doesn't ever talk back nor would he ever dare to bite me. In addition, the vet told us that physical punishment is encouraged in birds like him.
By the way, thanks for assuming that we hurt our bird. Because when you duck, they love it because then they unexpectedly crash into whatever is behind you. That is so much nicer than holding you hand up and forcing them to turn around mid-air and then simply flying back to their cage.