It is impolite to ask acquaintances about potentially sensitive and hurtful aspects of their personal lives if they have not expressly opened the subject themselves... especially in public.
Examples might be commenting on a claim somebody makes wondering if their motivation for doing so was if they were raped, or abused as a child, or if they have an eating disorder because their mother doesn't really love them.
Discussion (4)
This could be acceptable if and only if you ask the person's permission before asking, in which case they did not initiate the conversation/topic.
But they did expressly open the subject.
On a technicality, you have me. But on a different technicality, I'm still right.
Speaking of which, Xav-- How's that painful urethral burning?
Sorry, but I thought it was funny as fuck!