I believe that you have to let the person know that they are being recorded, unless the law has changed(simply because I enquired a few years ago, when a difficult situation came up).
And if it stops the person being abusive, then it means you can cope, so it doesn't matter if they don't do it then.
Very best of luck.
And if it stops the person being abusive, then it means you can cope, so it doesn't matter if they don't do it then.
Very best of luck.