Hi all, I just need advice I have been getting hassle from a colleague for a year now for no reason. He does things to annoy me and rants and raves at me for no reason. He has removed me from the whatsapp group so i decided to make a group and he came ranting you cannot do that isolating me. One time he was ranting as I clocked in 7:45am when we start at 8am he comes in to work just looking for a argument/fight with me. I promise i have done nothing wrong to him I do not gossip about people I just keep my head down. Now he is using threats about having a fight etc. He has been in the office a few times with his behavior.