It's a couple's nightmare – suddenly a guest has grabbed the microphone and is commanding the floor while he tells an embarrassing, rambling story in the guise of a wedding toast. They may have had too much to drink, be seeking attention, or just be inspired by the groundswell of emotions.
Don't Let This Be You
It should go without saying that unless you've been specifically asked to, don't grab the mike at a wedding reception. Instead, write the couple a heartfelt letter, or toast them at a different event. And If all of the obvious reasons why this is a bad idea don't stop you, think about your reputation: You'll forever be the guy who tried to ruin your friend's wedding. That's going to be hard to live down.
If This Happens at Your Wedding
Prevent this from happening by asking your wedding band or DJ not to give the microphone to anyone who's not scheduled to give a toast. If it happens anyway, get the DJ or band to start the music up and cut off the misguided tribute.