I remember staying with my Grandmother and her phone was a "party" line. I was instructed that, if I wanted to use the phone to call any of my friends there was a good chance the phone line was going to be used.
"How come?" I asked.
"Because our phone line is shared."
"Why?"
"Because that's how it is."
"Yea, but why?"
"Eat your ice cream."
Anyway, every time I picked up the phone some lady was talking. 20 minutes later I asked the lady how long she would be talking....Pretty cheeky for an eight year old as I was told by the lady on the other end of the phone. So, I dutifully put the phone down, called my Grandmother, told her what the lady had said to me. She picked up the phone had a discussion with the lady and, miracle, I was able to call Billy across the street. My Grandmother wanted to know why I just didn't walk across the street to see Billy...… Gee....I never thought of that.....