Appa is a little over a year old. His testicles recently dropped. In the past couple of months he has stopped using his "words" to tell me he's unhappy but rather is biting me. He's managed to draw blood once. A couple hours ago I was carrying him against my chest while walking to the kitchen. My plan was to put him in his travel house and give him veggie scraps while I cooked. Before I could get to the kitchen he bit hard. I have a nice bruise from it. What could I do to curb this behavior?