We've recently adopted a gorgeous male bunny from a friend. He's about 18m old. At the moment he seems quite nervy and jumpy-he also isn't at all keen on being lifted out of his hutch to go in his run/in the house, although seems to relax afterward. We've got some stamping/thumping going on, too. Any tips for taming him a bit? The other query I had was about castration-I've heard this can have a positive impact on temperament? Finally (sorry) we are hoping to get him a friend - is this possible after this amount of time as a lone bunny ranger?