Sherry Where Do I Know You From?

A new follower on Twitter posed this question to me. Well, let's see. Where could you know me from?
You called 9-1-1 and I was the volunteer EMT dispatched to help you when you were having a really bad day.
You stated your name and address, showed me your I.D. and I was the election official who gave you the ballot to change the world.
Your child broke his wrist and I applied the soft cast in the E.R.
You sat next to me in the theater and were so happy when I finished crunching my popcorn.
You were chatting with the other mothers at the bus stop and had to move over so I could jog through, huffing and puffing.
You were standing in a long line for the Peter Pan ride at the Magic Kingdom in Disney World and I was the woman in front of you reapplying sunscreen. 
You were a vendor at a train show and I stood in front of your table texting while my husband asked you if you could do better on a price.
You were in a Yoga class and I was the woman the instructor kept adjusting.
You sat next to me on a north or south bound train and I read the whole way.
You know my daughter who looks just like me. Only younger and slimmer.
You came to a book signing and didn't buy my book but asked me where the restroom was.
If none of those scenarios seem accurate, perhaps I just look like Mrs. Everywoman. It's very nice to meet you.