14.

“I had to break up a fistfight between the groom and the mother of the bride.”

—u/doctoroffisticuffs

“The bride and mom had a bad relationship: The mom barely wanted to be involved in the wedding process, and the groom had to help the bride through a lot of emotional pain about that. At the reception though, the mom had a change of heart and spent all night drinking with the bride, who was thrilled to have mom finally pay attention to her. Meanwhile, the groom went back to the house the wedding party was staying at, mad that he wasn’t getting to spend his wedding night with his wife. 

When they finally got back to the house, he told his new MIL that she was a shitty mother for leaving her kid high and dry for years for every dress fitting, shower, planning session, etc, and then making the reception about her. The drunk MIL tried to claw his eyes out and then walked into the ocean.”

—u/doctoroffisticuffs

Source: https://www.buzzfeed.com/ravenishak/worst-thing-at-wedding