I knew a guy that bought a kookaburra from a source somewhere in the UK. He had asked the guy if it was imprinted, trained, or interacted actively with people before his ownership, and the, what I assume was probably breeder, told him that the bird was docile and trained.

Went to get it out of the box and it just stuck his beak right into his gut.

Knowing the guy, he probably laughed as it happened. Completely unflappable individual.