I'm not one such person (although I've never used DH's services for other reasons, even while I was employed by such), but I could imagine a reasonable person s

I'm not one such person (although I've never used DH's services for other reasons, even while I was employed by such), but I could imagine a reasonable person saying "if they take part in bad practice X of which I know, what other bad practices might they take part in of which I don't know?"