I adopted two male rats from a local rescue yesterday, one, Jerry, is eating and drinking fine, but I've never seen the other, Ben, touch the food or drink anything. The pellets they're being given are Oxbow Regal Rat. This morning though Ben took some corn from my hand. Does he just not like Oxbow? He's a very skittish rat, so it could be possible that he's not eating when I'm there I guess, but he's starting to make me worry.