If the florist is still there, I run to them and beg them to make (for free) another corsage or boutonniere, but they are time consuming little buggers and it takes about 15 minutes to make. If the florist has already left the property, I go into the reception and snap off a flower from a centerpiece (sorry, florists!) in order to have something to quickly pin to dad's lapel. My brides never know about this, as it's a problem I immediately solve. But it's a stressful situation to be in, and to the family member that has lost the floral musical chairs, it is embarrassing and downright offensive. To them, it is so much more than just a boutonniere, it is badge of honor that says "I am an important person to the bride and groom".
Brides, when you're placing your floral order, count carefully, order an extra, or when in doubt: adorn.
photo by Next Exit Photography