Don't be in such a hurry to touch him, look at how many years or months he has been living in such deplorable conditions and not expecting any handeling. Give this boy more time to learn he is safe now with out pushing for him to interact before he is able to understand all the new people, behaviors, sounds, foods, cage, home and surroundings. A new child you just brought in from a horrid home life would also have a great deal of difficulty adjusting and learning it is now safe. So just let him acclimate offer some treats improve his diet and talk to him often -move slowly and most of all give him time and space to grow into his new family.