LOL - been there. There was a guy on Vandenberg AFB that looked just like me, and people would always come up and say they saw me in this place or that, and I was never there. Then years later, when my job moved out to Hill AFB, I actually met the guy ... and he did look a lot like me. So much in fact that we used to have a guard desk at the building we both worked at ... and the guards would tell me stuff like 'hey, ya got the recipe for that salmon dish you gave us to taste test yesterday' ... to which I'd look at them confused. I'd tell 'em it wasn't me, but they thought I was just fucking with 'em. Finally they figured it out ... a good time was had by all.
Creepy as shit but I met a doppelganger of my mom one time. I took a picture of this lady and sent it to her and she asked me when I took that photo of her.