Flower girl won't come out of hiding. Bride won't do wedding without flower girl, initiating desperate search through audience for girl who will fit dress.
Bride's and groom's family and friends lunge across aisle at each other, multiple times during ceremony. Real fights, flying chairs, overturned tables at reception. People ordering prints for evidence in assault cases.
Groom confesses to bride, on altar, that he slept with another woman that morning. Family pulls bride off groom. Last I saw of bride.
Bride is 8 months, 3 weeks, 6 days pregnant. Thinks she's having contractions during ceremony. (she didn't deliver for a couple more days). Booked a studio "reshoot" of the formals 3 months later.
Bride has divorced parents, both remaried. Groom also has divorced parents, both remaried. Some of the divorced and remaried parents and stepparents subsiquently remaried. Bride and groom want pictures with all 12 parents, including about 100 permutations in the formals. None of the 12 parents wants to stop glaring at each other long enough to look at the camera and smile for a picture. I had to make my "please behave for a few seconds, it's supposed to be the happiest day for the kids" speech dozens of times.
Bride and groom and family and friends all heaviest smokers I've ever seen. Including 100% of wedding guests. People lit up during ceremony (minister not at all tolerant of that, thank god). At reception, air almost opaque, many pictures had horrible haze patterns from flash illuminated smoke.