Brandy seems to be like this. He'd rather someone would pet him in his cage rather than bring him out. If you bring him out and hold him for longer than he wants he'l start by trying to bite your fingers then start squeaking really loudly. Once he's into his cage he's fine. If I stand near his cage with Misty or Sooty he'll start chattering his teeth as soon as he hears them. I know he didn't get handled much at his old home because she couldn't be bothered with him just her other piggie and rabbit. Would handling him a bit more each day make any difference? It's just a shame he can't have the company of another piggie or atleast a human really.