Back in the day, {year before last} when I got calls from live telamarketing folks, I would keep them on the line as long as I could. I would talk about anything, just to tie them up. I never get any live call anymore.
I have got a couple of computers trying to sound live though. I responded only in Grateful Dead lyrics, and it tied them up. So if I said "I wish I was a headlight on a north-bound train, I'd shine my light through the cool Colorado rain." It would always go back to, "so who is your home security company now?"
I miss the good old days.