I don't have photo proof of this but it was most assuredly the worst battle I've ever delt with!!

My mom's cockatoo, Angus decided one day that he did NOT like me at all!! As I was walking by my moms room he leapt off his cage and sunk his feet into my arm and bit THROUGH a part of my arm *his beak was touching inside my skin*

I was bleeding really bad and mom had to pull Angus off me!

I tell you what, that bird still hates my guts sigh...and I still have scars!