That's funny goosedragon because in my experience my Muscovy drakes are never as brutal as mallard deriv drakes and won't touch a mallard deriv. duck. I've had two that would rape a cripple goose I had, both were bought at an auction and promptly taken right back. My Welsh drakes were ten times worse than my Muscovy drakes and they're about a third of the size. Guess it just goes to show that they don't read the manual as people like to say!