No lengthy explanation of why the wedding will not happen is necessary. How couples choose to notify their wedding guests varies – it makes sense for the couple to divide the list and call or write notes personally to prospective attendees. The first people to be notified of a wedding that isn't going to happen are the vendors – wedding officiants, bakers, caterers, reception hall owners and the like. Letting these people know first may allow you to retain any deposits put down on the wedding. Finally, at the ceremony, you may encounter undesirable guests – whether they're uninvited, drunk, unruly or young ones (when you made clear via word of mouth that children were verboten). There's not a lot you can do if they show up at the wedding, but stationing someone at the door with a list of names can stave off wedding crashers if there's just no space for them. Some brides opt to pay for another table at the reception to accommodate these guests, but it's not mandatory. It's best to "assign" trusted people – perhaps members of the wedding party or relatives – to keep an eye on people's behavior. Everyone has that friend or family member who gets drunk at every opportunity. If things get out of hand, it's best for one of these assigned people to handle it if a scene is about to be created. Above all, guests and wedding parties should be courteous, gracious and thoughtful.