Thank you for your advice! I'm trying him with some broccoli tonight I'll tell you how it goes!
He has a playpen now! With lots of hidey holes and toys. It was back at my old house, I used the bath, I was given some dodgy advice by a friend who did animal behaviour. She said not to use hidey holes and just force him to get used to me. Obviously, that is not the right approach. I know better now although I still feel guilty for those first few sessions. Despite my mistakes the little guy has forgiven me and our taming i going slow but well.
Video of percy in his pen being silly :
https://www.instagram.com/p/BPfhZqsh...y=lilgreyshark
(Sorry it doent show off the pen very well)