Happens to me all the time. XD
One instance, which I find hillarious is at school. This kid named Alex, (my name is Alexa) so we have that problem there. The other problem, was that from behind, he looked JUST like me. One day, I was wearing a skirt, and standing talking to one of my friends, and oneof his friends, she' wasn't wearing glasses, so she came up to me and was like "Hey Alex, wanna go to yoga?" I turned around and was like "Vika, are you serious. I'm wearing a skirt, and he's wearing baggy jeans with his boxers sticking out."