After his run in the playpen, Socks had a quiet night, but was up at 6am for breakfast, oats, and some pats. I lifted him onto the hammock last night and he sniffed it over and explored it with his whiskers. He tried to find his way back onto it later, but took a right instead of a left and went back to the centre of his cage. I'm sure we can work out the route tonight. I dropped a wing nut and was cursing, looked round to see Socks in his playpen gazing up at me wide eyed. I had to spend some time playing with him to reassure him and then be serene, which helped to get the job done. When he was more interested in climbing out the pen than running round it, I gave him a lift back to his cage and we went through his food bowl.