I can honestly say that this has not happened with me. How does one misplace the garter? It's usually on my brides when they get dressed. I've seen the bouquet get 'lost' but every time, it's been quickly located
=)
In this instance it got lost during pictures somewhere outside the venue. Lets just say just because it has never happened to you doesnt mean that moment isnt ahead. They have huge significance in messing up timing and flow for the event if gone missing. much the same if the groom is missing out smoking a doobie with his boys!