Writing my master thesis at my company, theoretical computer science, doing fancy shit with scheduling rules. but am just a "working student".
Realized, that all my project member, also other colleagues, standing right behind me at a Whiteboard, discussing that part of the project I am the expert of, as this exactly is my topic.
They were asking very new team member about my topic, but they know nothing, just guessing how this could be.

Nobody did even think about asking me.
So I continued working on what they thought "nobody has knowledge about at all".