I think it's curious the way "professional" athletes talk about whether they'll "play" on any given day. It's like if I, a "professional" software engineer, were to talk about whether I'm going to "play" computers today.
I read some blogs here and there. Tonight I read a QA blog that I frequent (the blog's author takes questions from readers about a particular topic) and one of the questions concerned overhearing the conversation of a colleague where the conversation seemed to indicate that the colleague was the victim of domestic violence. The person responding to the question, the blog's author, answered that given the described circumstances the person asking the question should stay out of it.
I don't usually (really ever) feel compelled to write comments on blogs. Usually some know-it-all asshole responds to my comment telling me how wrong I am and how I couldn't possibly ever be more wrong, let alone capable of functioning in society. However, given the gravity of this topic, I felt compelled to comment that sometimes one might be required by law to report what the questioner described.
True to form, someone immediately responded to my comment with a comment that "overhearing someone doesn't make you a mandatory reporter" and what the hell was I talking about. Except sometimes the law does require one to report violence, abuse, or neglect even when it is only suspected. The aforementioned link makes no distinction between someone telling the mandatory reporter and the mandatory reporter overhearing someone talking about it. My comment was only to inform that one really needs to be aware of one's legal obligations when it comes to suspected violence, abuse, or neglect, and that the blog's author missed this point.
Different states have different requirements for what type of violence, abuse, or neglect are required to be reported and who is required to do the reporting. I am not a lawyer, of course, so I cannot provide legal advice, especially about what your legal obligations are. But, it is my position that telling someone that they shouldn't report these things is bad advice.