Someone is dressed just like you!
How do you feel when you arrive some place where you'll be staying for a long time,and suddenly realize that someone is dressed like you? They have the same clothes color, hair style,etc. Do you feel uncomfortable or do you just not care? The worst part is when someone else notices it and starts making fun of the fact that you both look like the same person.
My wife came face to face with another woman wearing exactly the same shirt as hers in the parking lot of a shopping center. They looked at each other and smiled, and my wife just said: "Nice shirt!".
That has never happened to me before, but if it did, it would be very funny!! That is, it would be very funny unless the person dressed like me was someone I didn't particularly like.