So this telemarketer calls and spouts out a bunch of stuff she thinks she knows about my home security system, and then asks me a question about our security system and asks what we are paying and how we're paying it.
Calmly, without profanity, I tell her "That's actually none of your business. "
She acts shocked, and says "You ... you are just rude!"
Like calling someone you've never met out of the blue and asking them about their finances and home security system is an exercise in politeness? I wouldn't think it is my business to ask questions like this of my friends or neighbors, but because you want to sell me something, you think it's not rude to ask me, even though we've never met? I don't think so.