What embarrassing things did you encounter at the wedding?

My brother got married in the banquet hall of a hotel. There was another banquet hall in this hotel that day, right next door to me. Because the banquet hall doesn't smoke, we can smoke at the door, and then we hear a few classic swearing words coming from the banquet hall next to it, and then we see a man of about 25 coming out to swear, and some people are persuading him. The man also said he was going to hit someone or something. I'm not sure about this guy. It's not a conflict with the people who came to the wedding that day, but whether you are a friend or relative of the bride and groom, isn't it not authentic to smash a venue on someone else's big day? At that time, our smoking buddy felt speechless and said it was the first time to see such quality. This thing is really not suitable for everyone.