I would try and arrange with the boss, some sort of way, were you don't have to work with this bloke. As in I would make it clear what he is doing to you. How he is making you feel. In a sense it is a bit like bullying in the work place. In the age we live in people have stepped up to try and stop such bullying. It would be putting your boss on the spot. He is the boss after all. Either he sorts it out or you will. He would have to do something as such a thing at work is not allowed. I know there might be the fear of him sacking you. But if such a thing was to happen I would again bring up the bullying issue. Can be a bit like the race card. Only thing is you are the victim of a typical work bully. So you are not making it up. Others in work would probably side with you. Can't fire everybody. It is a simple request. To not have to deal with this bloke at all during the working day. As you feel bullied by him and it is getting to you. This is just one option. You could look for another job. Why bother when you like all the other workers. Just something to think over.