I once read some advice that I'll try to repeat, but without knowing whether I can do a great job capturing it, but here it goes. The general idea was that if you're on a date with someone, then you should avoid asking or saying things that subtly insist that something is true if you don't know it to be true. An example is that if you don't know whether your date was molested by their father as a child, you should tread carefully with any questions or comments that carry the presumption that they weren't.

Here's some more sage wisdom: the average human has approximately one testicle. Except not, right? Because that's not how numbers work. So, it doesn't matter if, say, only 4% of the people you interact with are unlucky and 96% aren't. This is not an engineering problem. If you do meet someone who is (or was) unlucky, and you have an interaction with them like this, then even though they're in the 4%, their circumstances are still 100% at odds with your assumption.