My Amazon has only bitten me once. I was misting her, and she tried to bite the nozzle of the mister - my finger, on the trigger, was too close to the nozzle, and she chomped down hard enough to draw blood and leave a scar. I was shocked by how much it hurt, but I didn't want to upset her, so I didn't tell her she hurt me. I just carried on spraying her. In truth, though, I was actually VERY happy that she was able to bite so hard. It made me feel that she stood a chance if the cat ever went after her. She seemed pretty defenseless until then.