The scene: front passenger seat of a rented van, on an interstate. Day 1 of a road trip. Text notification beeps on my phone. It's my sister's girlfriend.
Her: Hi, this is [sister] on [girlfriend's] phone. When are you going to visit Aunt B?I reassured her that there was - hopefully - no ambush in the works. My aunt was hosting a gathering of her own siblings, and my parents were expected to be long gone before I visited her at the end of my road trip. So no need for concern.
Her: I'm worried about you being ambushed.
Her: Mom and dad are driving to [aunt's state] right now.
So thanks to my sister for the heads-up.
And also thanks to her for indirectly reminding me that my mother is somebody for whom ambush seems a pretty reasonable first assumption. That's messed up. You definitely don't want to have a person in your life who seems more likely to be planning an ambush than setting out on an innocent family vacation.