history: When I was in college I was in a class with an older woman who was a returning student.  She heard me talking about a paper idea I had, then presented it as her own, stealing my work.
current: I was in a college class once with an older woman.  She took a paper idea I had talked about and presented it as her own, stealing all the work I had done.
next: That is despicable. Did you report her to the teacher?