I was grocery shopping at the real in Bilk, queuing at one of the always too full and too few cashiers. Suddenly the woman in front of me turned around and stared at me. Really intense.

Now usually this doesn’t happen. At least not to me. Being the always suave and collected person that I am, I couldn’t really think of anything else than stare back. Think rabbit and headlight.

Either way, it was her turn to pay and when she was done with that and the cashier woman started to scan my stuff, she turned back to me:

“Is your name Dominik?”

Now you might remember, just now I already pointed out my extreme quick-wittedness. And that was, when I was just being stared at. Not when some complete stranger (who, even though that’s not such a big part of the story, was actually rather pretty and around my age) seems to know me and asks that question in English.
So, I did manage to say: “Eh, yes…?!” Which made her laugh. Which just added to my confusion. Before I could ask her, who she is or why she knew my name:

“Das macht sieben Euro und fünfundsiebtzich Tzent!”

the cashier woman interrupted.
I paid and when I turned back, she was gone.

I picked up my stuff, looked around both in the cashier area and outside the supermarket, but I couldn’t find her anymore.

So, uh… if anyone of you is (or know) a roughly end-20s/early 30s woman, living in the southern part of Düsseldorf, about 1.70m with blue-grey eyes and long dark hair, who speaks accent-free English: who? why? what?

Yes, I’m confused and slightly paranoid.