Since you're likely to see it dozens of times a day, your phone's lock screen is a great place to throw up one of your favorite pictures.
For many of us that might mean a snap of our celebrity crush. So, what happens when friends and coworkers who don't know any better assume the image on your lock screen is your significant other?
It seems that's exactly what happened to a lot of people on Twitter who began sharing the awkward and hilarious stories of mistaken identity.
Sometimes the mistake can be flattering. Apparently one Tesco cashier didn't recognize A-Lister Emily Blunt as the woman on her customer's lock screen and assumed she was his girlfriend. We should all be so lucky.