Has anybody ever experienced a memory that they definitely know never happened?

I've picked up on it more so lately, someone will be talking about something random, or I will be reading something & I will 'remember' experiencing a similar situation or event, even though I know it's never happened to me.

For example, I was reading something on here in regards to rape & molestation, then had a strange dejavu moment of being raped as a woman. (I'm male though)

Probably a brain tumor or something.