We are at home today and this afternoon went for a walk with the dog. On the way back, I turned around and saw the dog standing stock still, cowering into the ground. J said she had something stuck in her - I looked and saw it was a cactus thorn that had been pushed right into her back. It must have been hurting. I pulled it out and asked J how it had got in there, although the most probable explanation was obviously that he had pushed it in. Instantly and totally fluently, he told me that she had rubbed herself against the plant - when I asked if he was telling the truth, he looked convincingly injured and insisted he was telling the truth. He was so plausible that although it was odd - how had she rubbed the middle of her back?? - I almost believed him. When we got back home, he wanted to run off and see neighbours of ours (a family who have taken him under their wing a little bit) but before he did so, I insisted he tell me the truth about what happened. I told him I would not be cross but it was important just to tell the truth... he instantly said that, yes, he had put the thorn into the dog. He didn't seem in any way guilty or regretful. When I asked him why, he said it was because she had not wanted to go in the puddle with him (but this could have just been the first thought that came into his head). It's worrying. Lying, being cruel to the dog, no remorse of any kind... Is this just going to be the way of the future???