Recorded message said I could receive a "free" home security system if I would pay a small monthly fee. Ha ha ha, I guess their definition of "free" is a little different from mine. Anyway, knowing this is a scam, I pressed "O" to speak with a human, and a Pakistani-sounding man named "Sunny" asked me "How are YOU doing today?" and I just started blowing my police whistle into the phone. He hung up on me.
It's excellent stress relief, this. Since they call me (in spite of my being on the do-not-call list), they have no recourse against the verbal abuse I inflict on them, at the top of my lungs. Then they go on the block list, and have to buy/steal another telephone number to call from if they want to try selling me a security system again.