In Australia, magpies are a threat for part of the year. As someone said earlier, they are known to take bits out of your scalp, and can be extremely aggressive. Magpies are much smaller than geese, but they are very common in our cities. Usually three pairs nest in the small park opposite us.
It is compulsory to wear a bicycle helmet in Australia, but even then, people get viciously attacked. During the season most bicyclists around here wear bicycle helmets with cable ties projecting about 10 inches out from the helmet in all directions. Many also carry a stick (at least 1 yard long strapped to the frame) - maybe this is a walking stick, which they wave about while they are being attacked. I have seen numerous encounters between bicyclists and magpies, and usually, the bicyclist escapes without injury with this equipment.
It is possible that your goose would also be intimidated by these items.