Just as we were poised to cut the cake my MIL tapped DH on the shoulder and said something. He turned round to reply and the cake went flying.... The best man (who hated, and still hates) sports of every kind leapt forward and made a save that wouldn't have disgraced a first class cricketer!

My mother and her sister weren't speaking to any of DH's family and almost didn't come to the wedding at all; needless to say I was later blamed for the whole thing!