Even if she didn't know you were about to take that final, it's still a horrible joke to make. If she did know then she's deliberately sabotaging your education, good way to end up in a retirement home imo.

That’s a fascinating way for a person to decide they don’t want a relationship with their child or grandchildren.

I'm terribly sorry for your experience OP! I'd be furious, and I'd sit down with my mother and have a serious conversation with her about what's acceptable and decent behavior and what isn't.

I would get a lawyer and demand compensation for that. I’m pretty sure they broke a law in that. Like yelling “Fire!” In a crowded theater. Anytime physical or financial loss results from pranks, the pranker IS liable for causing panic. Then get a ******* restraining order and serve their ass with a no-contact warrant.

Sounds like sabotage of your test and not a “joke”… Unless you’re living with Mom in her home, drop her like a hot potato.