So, I've now had Sunny for about a week! We've made so amazing progress. Sunny now knows step-up, comes to me when I open his cage, and lets me pet him! Whenever I pet him he starts 'grooming' me. Not biting, just mouthing and licking. Anyways, after grooming me for awhile he grabbed a chunk and broke the skin a bit. I now have a small hole where he bit me. It didn't seem aggressive at all but it still hurt. I've read not to discourage grooming as its a bonding thing and personally I think its awesome - but I certainly don't want him taking chunks out of my skin every once in awhile. Any advice?