I don't get the hysteria over the event in the OP. Lot's of brutal things happen in houses, especially the comparatively ancient ones that Kibble inspects. Births, deaths, plagues, battery, and even the occasional murder. My house was owned by the same family for 111 years, I am fairly certain most of the items on my list occurred there. The house I grew up in was sold at the end of a bitter divorce and family feud (the dad was sleeping with one of his daughters-in-law) that included gun fights and dynamite. The stories were kinda fun. One of the sons still goes by the name 'Crazy Larry'. That said, I think it would be amusing to make the disclosure. Who's going to faint first, the RE or the client?