Hi, my rescue male, maybe 3 to 5 years old, had his first since we got him at the end of April, small meat filled bone from pets corner. He really didn't know what to do with it. He licked a bit out, over about an hour or so, but no chewing of the actual bone. He flung it about on the floor as though it was a toy and then left it in his crate rather uninterested in it. I wrapped it in cling film to try again tomorrow. Is it ok to keep it for a few days like this? Is it normal for him to do this with it? Should I start him off with some small filled bone bits? Or is there even such a product? Thanks