If you just got him on Saturday and hes ate at least once for you that's not to bad, don't stress yourself yet. He is probably just trying to adjust to new surroundings. Some of them take longer then others to adjust. My adult Cranwellis when she was a baby took about 3 days to eat and tried to escape and would freak out at night for about a week and half then she finally settled, My ornate ate the first night and had no problems at all, and my new guy I just got is pretty timid. Try to tong feed him in his enclosure like Jason suggested, takeing him out might just freak him out more, And as Jason also sated you should really try to get the temps up, low temps equal slow digestion which will make him not want to eat. But again I think he may just need abit more time to relax, cheers and I hope it works it out for you. Oh I almost forgot, if you cant get him tong feed right away if you have to put the crickets in with him if you take the back legs off them he will have an easier time catching them. Some of these guys have terrible aim.