“The guy should not have made those threats, of course.”
Wht not??
I cuss out telemarketers in as harsh a fashion that I can think of.
If you want to hear creative ways of making telemarketers' lives miserable, Jim Florentine has a number of comedy CDs where he recorded conversations with them. My personal favorite is where a telemarketer trying to see pre-paid funeral arrangements calls someone on the verge of suicide... It's hilarious.
Mark