I would.
I was getting calls from a firm that sounded entirely comprised of people from India. For the longest time, I would say 'stop calling', 'you have the wrong number'...for two fucking years!!!! The last occasion I decided this wasn't working.
This time it was an Indian lady, starts off very polite.
Her: Hello Mr. XXX I am calling about X
Me; Hey yeah, thanks for calling you know I have repeatedly asked you all to stop calling nicely and that hasn't worked so I am just going to say that I hope your mom is raped by monkeys!!!
Me: did you hear that?
Her; ( Now she shows her third world true colors and starts cursing me out unintelligibly ) blah blah (laugh.)
Me: ( laughing ) Feels good right? I hope she really gets raped by monkeys!
Hangs up
It's been 3 months and I haven't heard from them which is a record, this may have worked or my curse worked and her mom was raped by a pack of monkeys.