How did one of my pallpoint pen end up being used by my dentist?
Actually, there could be a perfectly normal explanation to it, but I think I'd had noticed it.
Years ago I bought a pack of ten black pen, and stuck yellow and green electrical tape at the end (the tape I use to mark all my school stuff) and numbered them 1 to 10, to see, years later, if I could find all ten again. And a little while later I saw my dentist write my next appointment with a black pen that had yellow and green tape on it.
I have absolutely no memories of either opening my school bag and the pen falling in her office, or lending my pen to her (she always had her own on her desk).
If I was to try and roundup those pens I guess I could find maybe half of them now - creepy would be to have all 10 or even 11 with the tape on them..