So my family has known this married couple, let's call them Husband and Wife, for 15 years. Recently, Husband went away on a business trip for 2 weeks. Wife goes to take a bath, turns the tap on and leaves the bathroom to go do something. Completely forgets about the running tap, and the bathroom is completely flooded. She told my family this over coffee, while Husband was still gone. So when Husband gets back, I ask him how his floor is holding up. He had no idea what I was talking about. I had assumed that Wife had told Husband about her accident. But she hadn't. And this isn't the first time it's happened. My mother got mad at me, and said that I shouldn't have said anything about the floor. If I had been Wife, and flooded the bathroom due to my own carelessness, I would immediately tell my husband, because I'd want him to help me not be so careless in the future. I'd look at it as I would any other confession: the act of confessing would be a deterrent in the future. Was I in the wrong here?

Unless they told you not to say something and told you in confidence I don't think you did anything wrong.

And the wife really should have told her husband if it was a bad case of flooding...  I am reminded of an episode in the "Leave it to Beaver" show where this happened to the 2 boys while their parents were gone.  They thought that they had gotten away with it until the floor/ceiling collapsed when their parents came home.