Whatever have you

My mother has a PhD in English. My sister was an English major. My dad is a virtual linguist. I myself am a compulsive copy-editor. I know that the idiom is "what have you."

I worked on an international consulting project one time with a really smart German guy who was partner at the Prestigious International Consulting Firm in question. He is married to an Englishwoman, lives in England and speaks generally flawless English. Only he persists in making lists that end with the phrase, "or whatever have you." I never dared to correct him... and actually, I found it quite endearing.

Don't you?