You should try landing a glider amongst them. No engine so no beat-ups to drive them off and no second-chance go-arounds. And of course they stand in the shadows where you can't see them. Not funny at all.
And they're not dumb, they do everything deliberately just to get you!

Used to chase them off the airfield on a quad for other landing pilots. In drought times when desperate they'd simply hop off to the side and circle around behind you.