What’s Irritating the Sh*t out of me!

If you tell someone that you are not interested and they do not end the call they are being rude and want you to be rude in return.
People only communicate in the way that they wish to be communicated with in return. Psychological fact, they may not be aware of it, but it is true.
If you start off polite and they are rude in return they are telling you what they want.
Not ending the call after you have asked is rude, end of story.
All cold-calling and door-to-door should be illegal.
I worked in sales for a few years in Ins. incoming calls only.
When asked to cold-call I refused and would have gotten another job if it came to that.
You choose the job you have.
Treat others the way you want to be treated.