My flock consists of white and brown chinese, embden, dewlap toulouse, a buff and a couple of mixes. None have ever attacked me. There have been some warnings, which I just warned back and that stopped that. They come to me when called and although most do not want hands on attention, they do like to have attention. Overall very friendly geese that I have NO fear of.
They do squabble among themselves. I figure that is their keeping the pecking order going and do not intervene. They do no harm to each other.
They have a night pen and if in it too long they do get restless and more inclined to argure. They are turned out in a 2 acre pasture during the day. But they come back to the pen for water and shade and to rest.
There are muscovy ducks in with them. Very little arguing between them. Sometimes a goose will grab at a duck, but for the most part they each live their own lives ignoring the other. But the ducks are almost as big as some of the geese, just on shorter legs and with shorter necks.
Maybe having more room helps? There is a kiddy pool for them to play in and an old bath tub that they absolutly LOVE. They do take turns at both, and that is where the dominate groups can be plainly seen. They will start toward the tub, loudly proclaiming their arrival and any that are at the tub will leave.
It is really interesting watching the social behavior of the geese.