He's lucky that goose didn't do worse! You threaten their little ones, and they can get quite nasty!
Yup. I thought my gander killed someone once. (He didn't, the guy was fine, except for a severely wounded pride and some bruises) His goose had a beautiful pack of 10 two day old goslings and my mom was having a family get together, unfortunately with my jerk of a cousin. (A 35+ y.o. man, not a child) Jerk was kicking my goslings across the grass as they passed him and despite being told to stop, ignored us and flung a glass beer bottle at a gosling, stunning it. I ran for my gosling, and Gander ran for Jerk, "goosing" in in the front and when he went down leaping onto him and in a flurry biting and beating him with his wings. My mom yelled at me to call off my gander...
Or she says she did anyway. I was making sure I still had ten live goslings. I got the gander off, but not until fifteen minutes later, by then he had bloodied Jerk's nose, attacked three more cousins who tried to interrupt his teaching Jerk a lesson, then pooped on Jerk's chest and came when I called him. After Jerk fled into the house, Gander went to investigate if he could mooch hot dog buns from the little kids.
Jerk threatened to go "wring that bird's neck" and I told him he could try, but best case he'd get beaten up by a Goode again, worst case he would succeed and I'd call the police about him drinking while on probation. He challenged me so I called the police anyway.
My geese were weirdos. Most geese are super aggressive with kids, but both of my adults loved kids and other than occasionally snatching food from their hands were very patient with them and would endure rough petting, tail pulling and screaming. They even went swimming with the kids in the stock pond, although I tried to tell Mom not to let the kids swim in there. I miss having my geese, they were such cool pets.