Man "scuffles" with his parrot

This is one of those stories you can't make up.
A man was walking with his parrot in a backpack.
He got into a physical altercation with the bird which ended with the bird losing feathers and the man suffering from bird bites.
His story is that the bird is not trained and would not listen, so he shook it.
Anyone who doesn't respect a large bird's ability to damage anything it can fit it's nut-cracking beak around is a fool.