My old company had a parking lot that was next to a stream that contained geese/geese nests. Every spring the geese would get increasingly aggressive and when you were walking to/from your car, pretty much every time you'd have a run in with an angry goose. Every time, I knew for certain I would win, but I really didn't want to have to deal with it. Nothing sounds like ruining a workday like fist fighting a goose on the way to your desk.