In some cases like my great grandfather, I suspect he actually enjoyed the conversation because he was bored. Even though we went to his house nearly every day,

In some cases like my great grandfather, I suspect he actually enjoyed the conversation because he was bored. Even though we went to his house nearly every day, there's still a lot of hours in the day. He didn't get scammed over the phone but he probably had his driveway re-sealed 4-5 times a year. We would chase them away but they knew they could get him when there was nobody else around. Sickening people who do this. It seemed possible that he knew his driveway didn't need sealed, but he would sit outside and chat with them for the 3-4 hours it took to do the job.