Being rude to anyone who has the last name “Rousey” seems like a bad idea, doesn’t it? Yes, it most certainly does. But according to Ronda Rousey, Justin Bieber (sidebar: Read our recent cover story on him here!) was “really rude” to her little sister at the Cannes Film Festival in 2014.

Rousey—who appeared on The Tonight Show Starring Jimmy Fallon last night—spoke with Cosmopolitan recently and revealed that, at Cannes, she approached Bieber and asked him if he would take a picture with her 16-year-old sister. His response? “I’ve already taken a billion pictures today, OK?”

In fairness to Biebs, “a billion” probably isn’t an exaggeration, so it’s hard to blame him for shooting down a photo request. But did he not recognize Rousey or…? Because shooting her down doesn’t sound smart. At all.

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[via Cosmopolitan]