Twins
I think Jenn wants to post this so I'm going to beat her to it. Last night we were at Target getting a shower curtain for the newly completed bathroom and she saw a dude in the checkout line that used to teach at SUA, or so she thought. She said "Hi" and it turned out it was the dude's twin brother.
She pretty much freaked out and couldn't stop talking about it. Had to call her sister to tell her she just had her first twin moment.
Quite frankly, I can't believe that was the first one. I know of at least two other twin moments in my life beyond Amy and Jenn.
How many twin moments have you experienced?