Wearing white to a wedding when you're not the bride is universally frowned-upon, but it looks like this mother-in-law didn't give a toss.
Bride Amy Pennza says she was "more stunned than furious" when her future mother-in-law turned up to her wedding wearing a white wedding dress of her own.
Pennza was incredibly understanding, and told metro.co.uk that her mother-in-law's dress purchase "wasn't malicious" but was a bargain that she "couldn't say no to".
The bride explained that her mother-in-law had grown up in poverty and had come across the dress on sale.