One of the most common examples is that of the black kite, which swoop down from the sky to steal food away from humans. Ok. It is what it is, but I cringe when I see people deliberately feeding this bird of prey. The main reason I get so upset is that I once saw a young girl with a piece of chicken in her hand, and a black kite quickly swooped down to grab it from her hands. It was a close call, but she did have some scrapes on her hand from the bird's large talons. I can only assume that over time something much worse could happen to somebody, as these carnivores could easily take off a finger.
I don't want to sound like an old curmudgeon, but I feel like I needed to post my feelings on the matter. As the old adage says, "please don't feed the wildlife". The adage is there for a reason. Please respect it.