There are always stories of wedding guests and bridesmaids-gone-bad that roll into a wedding or a wedding event in a wedding dress as an act of dramatic sabotage. Usually though, these stories are in movies or articles about "weddings dos and don'ts"--it's rare that it happens in real life. Mostly, because it's a 100% insane thing to do. Not only does it show your disrespect for the bride, but it's also so attention-seeking it's a borderline cry for help.
So, when a recent Reddit user consulted the "Am I the As*hole?" section about a predicament she was having with her best friend's groom's mother, people were ready to help. Planning a wedding can often bring out the worst in people, but there's really no excuse for this behavior.