"Do you know who I am?"

May seem like a(n) harmless enough question, but it has since risen to the top of my list of questions I will not answer. In fact, not only will I refuse to answer, I will also let the person asking the question know just how rude I think he/they/it/she is.
I work as a union rep in a small office. We have reps in different parts of the state. They tend to their bargaining unit and I tend to mind. One day we went to a learning seminar. I was wearing a name tag. A woman approached me and called me by name. I smiled and said hello. Instead of introducing herself, she said, "You don't know who I am, do you?" Thinking to myself... Should I? Why, are you important? or a more modern WTF?
"I'm Leticia. We talk on the phone all the time."
Actually, you send emails. I never talked to you. In fact, during the few meetings I have attended via ZOOM, your face looks like its being projected through a lens that's been covered with KY jelly.
So a few weeks ago I find myself at a learning conference and am stuck in the hotel lobby as I wait for my local's VP. I've got the name tag dangling from a lanyard. I'm approached by someone who greets me. She calls me by name. Again, she gets the hi back from me. This time she gives me a variation... "You don't remember my name."
I stood nose to nose and toe to toe in front of this woman. I asked her, "Do you remember the last time we met? I do. It was at ______. We were sitting in a lecture on workers' compensation. And I remember your asking me if I knew who you were. I thought that was one of the rudest things to say to me. Worse yet, you said it in front of others. What is your obsession with this? You know who I am. I said hello to you. Please stop saying that I don't know who you are in front of other people. You're making me sound feeble minded and you're disrespecting me in front of others."
Probably fell on deaf ears.

...

Yesterday I was at a grand opening of an occult shop. It drew a huge crowd of witches, pagans, druids, the paranormal, and the rest of us. A woman who was chatting with an established clique in the Egyptian tarot corner of the shop eyed me and walked over. Instead of a hello, she said, "You don't know who I am?"
WTF is it with these chicks? I'm not always good with names (and I tend to use last names rather than first names), but I generally remember people based on stories or anecdotes that they have shared. This one grabbed me at a wrong moment and I gave her a 4-1-1 on who she was.
"Yes, I know who you are. Your name is _____, like the flatware. You lived in a single room in a flophouse hotel in the Bay Area. You told people you worked in collections, when your real job was accounts receivable for the gas company. Collections just sounds tougher. You left the Bay Area and moved here. You rent a room in the home of an old lady who would throw you out on your a** if she knew you were witch. So you tell folks you are a closet witch." She was a little nervous by then. "My, you have quite a memory." I told her that I did. Then I asked to see her fingernails. They were un-manicured. When she used to come to meetings, she'd have acrylic fills.
Then I asked her if she knew what I did for a living, if she knew where I worked, if she knew what path I followed, if she knew anything. I told her then and there after she failed answering not to ask me in front of others if I knew who she was. Because I am capable of recounting some things that you might not want strangers to hear or to know about you.