Long speeches
I don’t know about you, but I’ve been to far too many weddings where the speeches were put before the food. This, I need to tell you, is a terrible idea. You’re in a situation where people who don’t usually talk in public have to bear their souls.

They won’t be concise, they will go on for far too long, and they won’t realize that everyone in the room is gnawing on the napkins because they’re starving. What usually happens is everyone drinks too much on an empty stomach to pass the time, and that never ends well.