So I started working at a small local pet store around 6 months ago and we've had this gold tegu and I've been working with him since. He used to huff and hiss but now he only runs. Because it is a store and not someone's home, I got a harness for him to use as a controlled environment. He seems to calm down after getting him out of his enclosure. He takes me on walks and climbs up to my shoulder now and then. He also jumps off and when trying to put the harness on he tries to bite. If he's touched at all he'll try to get away or arch his back. I feed him dubia roaches from tongs inside his enclosure and only try to interact with him when he's not in his dig box. Any help or advice would be appreciated. I have a massive interest in reptiles and am looking forward to learning as much as I can. Thank you in advance!