I’m saying I’ve already interviewed them and I don’t want to work here, because they’re nuts/toxic. Do I tell them that at 1:15 and go grab a fancy coffee, or d

I’m saying I’ve already interviewed them and I don’t want to work here, because they’re nuts/toxic. Do I tell them that at 1:15 and go grab a fancy coffee, or do I let them finish the interview? How many people really remember someone they interviewed at another place four years ago?