My sister was going into the water to save an errant soccer ball...she accidentally put her hand about 6 inches from a swallow's nest. This bird was NOT happy...NOT happy at all. Of course, I had to get in on the action and go see if there were any eggs in the nest...this only added insult to injury for the poor swallow, who put on her most imposing wing span and attacked...I haven't laughed this hard in awhile. This was one honked off bird. Really. Pissed. Off.