Could be that he's just having fun? Lord knows I've been to enough weddings to know that they're usually boring and predictable. I think it's safe to say having the whole wedding party do the Thriller dance is....well, neither.
Was there that many people left? The camera guy, the elderly folk and a few confused kids. I'm going to call BS, because it was not interrupted at least once, by a drunk uncle with a comb-over proclaiming that he invented most of the moves, but that leather jacket toting kid with one glove and bulbous eyes screwed him out of it.
