I need help /advice. I have asked my sister to be my Maid of honour. I need to give her name to the registrar. Recently she has been hitting the bottle and drinking heavily. What if she gets that drunk and doesn’t make the wedding? I can’t supervise her all day. Can someone stand in her place at last minute to sign out registrar? Starting to worry she will ruin my wedding or won’t even get down the aisle without being drunk..