I understand Sebastipoles are even tempered as well as beautiful and expensive.I love ducks and didn't deal with any mess because they free ranged.
I'd love to get geese, DW doesn't cause they had mean one's when she was a kid. Not all geese are aggressive, some breeds are quite calm.
They're probably a lot like many breeds of chicken, get them from a source that culls bad attitude. Hatchery geese are probably more aggressive.