My brother is a grown man, young and fit, a very in-shape cyclist. On his ride to work along the bike path one day a goose launches itself at him, knocks him off his bike and starts biting him and beating him with its wings. Dude was seriously beaten up by a goose, he is now terrified of them thinking they could peck his eyes out or something. I now worry about him riding too close to the canal for fear they'd knock him in and drown him.