It can be a bit surreal coming across a famous person in real life because, well, you don't exactly expect them to be walking around a shopping centre.
You sort of imagine they have people to complete their day-to-day errands but in reality, some are just like you and me.
When you stumble upon these celebrities, it's very easy to stand there, mouth agape and point and stare - or you can pluck up the courage and have a chat with them.
Obviously, you want a photo with the person because otherwise your mates will call bullshit and you'll have no proof.
But one mum in Tamworth, Staffordshire, had a downright strange approach to this scenario when she bumped into former England captain John Terry while out shopping.
Amy's mum and auntie ran into the former Aston Villa captain at Marks and Spencer while he was looking around the men's clothes area.
But when she asked for a photo of the former Chelsea defender, she didn't think to get herself in the picture, despite having good ol' auntie Pam to help her with the camera.
So J.T. just stood there. By himself. Alone. In a picture with... nobody.
Amy chucked the photo and message from her mum onto Twitter and it went big-time viral. In fact, it has been liked, shared and commented on more than 27,000 times since she posted.
She wrote: "My mom and auntie saw John Terry whilst shopping, asked him for a photo and just straight up took a picture of him on his own...DYING."
One fan commented on the post, saying: "When your nan takes a photo of your first day of big school," while another said: "I thought it was just my parents" alongside a picture of Joe Hart.
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