I sometimes ask what they are wearing. It seems to throw them off their pace.
Another trick is:
Caller: “Hello, this is David, with XYZ Corp, and I just want a moment of your time.” (First lie)
Me: “David! How the H*ll are you? I haven’t heard from you in years! How are the wife and kids? Say, did you ever follow up on that stock tip I gave you?” And so on… It seems to work, and is a lot of fun.
On the other hand, being one of those callers is hard work, they have to put up with a**holes lke me. Besides, at least they have a job, are paying taxes, and are not on welfare. Several of my patients were doing that job when they started coming to see me, all are still employed, doing well, and one owns her own company.