You really have to handle kits a lot in the first few months of their lives to really get them to be handle friendly. 6 or 7 months is when they really have much of their habits set in. My chins come out for play time and I set a baking timer. When the timer dings they know times up and they will go back to their cages. They know that if the timer dings and they dont go back to their cage they dont get a treat and they get shoo'd back in..lol...they are trained and conditioned this way because I taught them and worked with them when they were just young kits. The chins I have gotten elsewhere rarely learn the timer trick but will usually follow the other chins that do know what to do. some of my chins do not like being handled, and many chins will never like it, chins like to feel like they are in control. Your little chinny might be stressed about something and that is why he is chewing at his paws, or it might be alergic to the bedding you have in its cage. Believe me I have had my fair share of chase the lose chinchilla..lol...I suggest if your chin is by itself to buy a young kit from a breeder that takes extra time to handle their babies and make them cage mates. A lot of the time a buddy really changes the personality of the chin. I had a pink white female who hated to be petted touched anything. When I placed her with a large overly friendly standard her personality did a 180! Now she is the sweetest chin ever and her and him love to jump right into my arms when I open the cage and loved to be petted and scratch. Sometimes chins just need to see from other chins that everything will be ok and that us humans are actually nice and caring!