The bride and all her guests, apparently.
Who cares.
Oh it doesn't really matter.
A bat mat.
You can mash potatoes, but you can't pee soup. (sorry sorry. Really. I've loved this joke since I was... oh.. six...)
Pee in a cup.
A new last name.
TLDR
The guest of honor always shows up late!
He's left there trying to "guess" what happened.