Geese are brutal. My parent's neighbor had a pet goose for several years that was a "guard goose". The neighbor lives at the end of a 2-track road that is around a corner and about 100 yards down from my parent's place. I've seen delivery trucks and other service vehicles backing up the 2-track from their house with that goose following them the whole way, raising all kinds of hell. The mailman and a UPS delivery guy regularly stop at my parents and ask if we'll take delivery for the neighbor and give it to him when he comes by because the goose won't let them out of their vehicles. Just like shown in the video, geese are shitty little cowards.....they wait until you turn your back then attack you. I can tell you from experience that guard goose can pinch the living sheot out of your thigh and calf thru a pair of Levi's if you don't keep your eye on his EVERY move when he's around.