I go out of my way to come up with particularly ridiculous answers to these questions in cases where I know someone might eventually want me to answer them over the phone.
Birth city: Octopus Mainframe Z7X
Birth city: Octopus Mainframe Z7X
"No thanks, that information is private and I'd rather not share it over the phone. I know, you're probably going to say that you can't help me without this information and you're doing this to help prevent identity theft but I stand by my choice to not partake in answering your question. Can I speak with a manager?"
That should make for a fun conversation.