Hot wedding idea, the worst man, it’s his duty to try and prevent the wedding at all costs.
Wouldn’t that just be the guy who goes “I object!” when the priest says “Speak now or forever hold your peace”?
Yeah but any idiot can do that. The Worst Man has to do it and come up with some dramatic, over convoluted reason why the couple can’t marry, complete with fake witnesses, and then challenge the groom to a sword fight for the bride’s hand right there in the church. It’s all staged to be as realistic as possible, maybe even with someone swinging off a chandelier if the wedding venue allows.
The Worst Man’s duty is to make the wedding exciting, to prove the couple are so in love that even the deliberate efforts of an outlandish saboteur can’t stop them.