I was working and living in Wuerzburg, Germany. I had a job teaching English to German students, I had just taught an evening class to around a dozen German students. Several of the female students, maybe three or four of them, came up as I was collecting my things, and asked if I would like to walk downtown rather than wait for the trolley, because it was a mild evening. I agreed, but said I had to leave the roster with the office. When I came back across the street, the street was totally empty. I thought they must have left without me. I was standing on the curb, trying to decide if I should walk or wait for the trolley, when I had the feeling that something was happening behind me.
I turned around, and I could see something like swirling dust against the stone wall of the building. Gradually, several bent over figures took shape. I stood there gawking at them as they completely took shape, stood up, turned around all at the same time and chattering with each other came walking towards me.
I was not frightened by them; after all, I had just spent a couple of hours in a classroom with them, they appeared to be young girls. It was like "Beam me down, Scotty." It was exactly like that, but the material swirling around was much smaller than the TV series showed.
That was the weirdist thing that ever happened to me.
I used the experience in my trilogy, VALLEY OF MANY WINDS. I could never get a publisher for it, I had to self-publish. I don't think that the "powers that be" want things like that discussed and do everything they can to suppress them.