My husband took over as manager of a business and inherited the staff that were there as such. One of them he has had repeated problems with, is clearly an alcoholic and has a really nasty temper. He's started on staff members before and my husband has wanted rid of him but didn't want to rock the boat too much in the early days. He has taken a dislike to my husband and has always been rude to him, he seems to have a problem with authority and just can't bare being managed by anyone, pushes back on everything. He has been getting worse and worse, he came into work drunk a few days ago and my husband told him to leave, the staff member got in his face and started calling him a cunt and saying he was going to kill him. He left and my husband terminated his employment and he was told not to come back. He did come back today and was mouthing off that he was going to kick his head in. My husband locked the doors and the now ex staff member was stood outside shouting abuse through the windows and saying come outside I dare you. He lives locally to both the business and our house and I just feel sick that he's going to attack my husband. All it can take is one punch and people can die, I know that probably sounds dramatic but it's just really scaring me. My husband isn't one for confrontation and is really taken aback by it all and upset himself. He knows what me and the kids look like too and I just worry he'll do something and I feel so unnerved. I want to report it all to the police but my husband worries it'll escalate things further? 