warming up cold callers

i received a call t'other day from one of those numbers which looked like it might not be real. As i was just chilling at home I thought I would answer it.
as usual, i didn't say anything, but waited to see if a robot started talking. (I'm sure i've posted about the robots winning before but cannot find said post). a man then started talking, very unsure of himself due to my silence. 1-0 to me.
It was clearly a cold call. i then remembered the wise words of my friend who had one of these 'people' calling him where he just started asking them as many questions as possible about their life trying to get them to quit their job and doing something useful with their lives. That's a bit morbid for me so i decided to see if i could get the guy to hang up on me.
i just ignored everything he asked and started asking him questions. where did they get my number, what company gave it to them, do they have any other info other than a phone number, why won't he answer my questions, where is he based, why does he keep asking questions before i'm finished asking my questions, what's his name, how long has he been at work today, do any conversations last this long etc
after about 9 minutes i got so bored i asked him "i'm really bored now, aren't you?" to which he laughed out loud. happy with my days work, i said "so you're a human after all, capable of emotion. I don't really care what you have to say any more, and i'm sure vice versa is true, so we shall go our separate ways and i hope to never speak to you again".

i hung up. 1-1