Isn't it as easy as explaining to them why niggers are not human? Or express your views about how the holocaust never happened but the kikes would have deserved to be wiped out?
That's what I do with scammers. I lead them on until they demand a screenshot proof of me sending them money back or whatever their scam is... then I do a quick search for the most disgusting scat porn and send it to them. Unfortunately I have to look at it too to get it but oh well.