Weddings: Why do some people get cold feet?
The giant cake is ready for collection. The DJ has received half payment. Expensive honeymoon reservations have been made. Perhaps even the grannies from the village have been carted to town, closer to the impending wedding venue. You need their blessings and goodwill, and what better way than to get granny around early enough so she may recuperate in good time from the tedious bus ride?