Millie we are often so alike! I am the same exact way.
Mormons like to ask that 'what do you like about us?' question. Some came to my door when I was still a witness. (Disclosure: talking to Mormons isn't easy for me. if I have been prejudiced against anyone, it is Mormons. I think this is based partially on subconscious dislike of my own past religion and sort of wanting to deflect my frustration at something.)
They asked what I like about them and I managed to say I appreciated that they are very family centered. They asked if I had read the Book of Mormon, and I had read some of it. They were all gushing and said 'what did you think???' I said I didn't want to discuss it. I wanted to keep their visit brief and didn't want to get negative on them. I guess as much as I disliked Mormons, I knew what knocking on doors was like so felt sympathetic.
A witness chat line would be funny. I'm pretty sure they would hang up the second someone said something negative.