There’s a pretty standard rule when it comes to attending a wedding: Don’t upstage the bride.
And while that’s normally applied to general guidelines about not wearing anything too white, cream, blush or champagne, it should go without saying that, unless it’s actually your wedding day, you don’t ship up to the church in a wedding dress.
Unless you’re this bride’s mother-in-law, of course.
A Mumsnet user going by the name of Natalie204 took to the message boards to ask for advice after pulling her partner’s mum up on her planned wedding attire.
“[Mother-in-law] showed me a photo of her dress and jacket she has bought for our wedding,” the post reads. “It’s beautiful, floor length white evening dress and white jacket. But I was brought up to never wear just white/ cream to a wedding as a guest.
“I mentioned that it’s not good etiquette to wear all white to a wedding. She was shocked and had never heard this before, my comment has now made things frosty.”
The bride continued: “I know my family will mention to her on the day how it’s not appropriate to be wearing white.
“The dress is from Monsoon’s bridal range. A beautiful dress. I think she will look beautiful in it, obviously it’s not that people will think she’s the bride.
“I’ve just been brought up to not wear only white/ ivory/ cream to a wedding.”
The responses were pretty split down the middle, although a number of users picked the biggest problem as being the bride’s family mentioning it to her mother-in-law.
“I would hope that my family had been brought up with better manners and wouldn’t mention it to cause any silliness at my wedding,” one Mumsnet regular posted, while another wondered “why would your family actually bring this up on your wedding day with her?”
But DollyBarton urged the bride to cut her mum-in-law some slack.
“It’s not good etiquette BUT I think it applies less to the MOTB and the MOTG as in all honesty, nobody would ever mistake them for the bride,” she wrote.
“I would think your MIL is feeling a bit down about what she obviously thought was a lovely outfit and now probably feel awkward after your comments.”
Our favourite comment, though, has no doubt reassured the bride-to-be that, surprisingly, she’s not the only one who has been put in this situation.
“If it’s any consolation, people will think she looks ridiculous,” Titanias reassured. “I was at a wedding years ago where the MOB wore a long white dress and a white hat with a veil, FFS, and everyone had a similar ‘my god, what on earth was she thinking??!’ reaction.
Now that is one wedding we would have loved to have been guests at.