What’s the worst thing someone connected to you did?

One of my cousins (who has since passed), not a bad guy, but he and his business partner torched their bar for the insurance money and got caught, and he flipped to beat the rap. Not sure how I feel about that one.

I have like 40 first cousins (huge Irish family), so we've actually gotten off pretty good. Most of the wounds have been self-inflicted.