In weddings you've attended (either your own, as a BM, or a guest), what are the little hiccups you've encountered? I figure maybe sharing these stories can help people avoid them!
The first that came to mind for me was when I was MOH at my best friend/FSIL's wedding. Everyone was meeting in my hotel room for breakfast the morning of the wedding. The MOG had gone back and forth about attending (she thought she might like to have breakfast with her son) so the bride told me I shouldn't expect her. I got everyone's breakfast orders at the rehearsal dinner to leave out overnight for morning room service. The next morning, everyone arrives and we're waiting for food... and then knock, knock, knock! There's MOG. My stomach still sinks when I think about it.
The food arrived and I passed everything out. Luckily I ordered a bunch extra to share so there was plenty of food, but she quipped something about how the bride never got her order. I took all the blame, but boy did that suck!