Trump’s attempts to dismiss the late Beau Biden’s good work Tuesday by returning to Hunter Biden’s failings (“I don’t know Beau. I know Hunter”) also hit home for me because I always worried that my sister — who along with being my best friend is the best daughter, wife and teacher I know — would have her reputation dragged down because of me.

I don’t know the inner dynamics of the Biden family. But I am sure the things Hunter did must have broken his father’s heart. I am sure they had conversations like the ones my mom had with me. So Joe Biden could have, rightly, brushed off Trump with another “will you shut up” or refocused the conversation on Beau, whose death he’s still so publicly grieving.

But instead, he met the moment head-on. “My son, like a lot of people you know at home, had a drug problem,” he said — before saying that Hunter has fixed them, and then uttering the words every recovering addict wants to hear: “I am proud of my son.”

Addictions require shame the same way fires require matches.