Dr Eduardo Calvillo
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dreduardocalvillo.substack.com
Dr Eduardo Calvillo
@dreduardocalvillo.substack.com
Senior Product Consultant & Team Leader

User centred design, satisfaction, retention, gamification and growth.
I think it was the same guy both times. But I couldn't swear on it. It happened few weeks apart.
November 18, 2025 at 6:32 AM
And yes, both times could have been accidents. But my gut says he’s doing it on purpose. They’re small things, nothing you can report, nothing that causes real harm, not enough to confront them as he could "hey, I am just clumsy".

But enough to ruin the day of the woman he targets.
November 18, 2025 at 6:30 AM
Yesterday at Postdamer Platz, the train wasn’t very full. I stood up to leave, a guy rushed ahead of me, and he crashed into a woman sitting across from me. Her legs weren’t stretched out or anything. As I stepped off, I realised he looked like the same guy from Eberswalder.
4/
November 18, 2025 at 6:30 AM
I looked around and saw a guy coming down exactly where she had been walking. She kept going to the U-Bahn. I stayed there confused, looking at him. He looked back, said something I didn’t catch, and then left.
3/
November 18, 2025 at 6:30 AM
First time was in Eberswalder. I was walking up the stairs, listening to something, lost in my thoughts. Suddenly the woman in front of me crossed to the other side of the stairs in a really unnatural way, and I heard loud shuffling steps behind her.
2/
November 18, 2025 at 6:30 AM
Yes PM!
June 23, 2025 at 8:10 PM
Yes, the iban they gave me is Belgian (I live en Germany), and I can transfer everywhere in Europe.

You can open a free account, if you want I have a code and we both get some money.
March 22, 2025 at 11:15 AM
Wise?
March 22, 2025 at 8:16 AM